diff --git a/sample/profiles/trace-event/hermes-multiple-frames.json b/sample/profiles/trace-event/hermes-multiple-frames.json
index a44dac80..452f4059 100644
--- a/sample/profiles/trace-event/hermes-multiple-frames.json
+++ b/sample/profiles/trace-event/hermes-multiple-frames.json
@@ -1,156 +1,156 @@
 [
-    {
-      "pid": 0,
-      "tid": 0,
-      "ph": "B",
-      "name": "[root]",
-      "ts": 0,
-      "args": {
-        "name": "[root]",
-        "category": "root",
-        "url": null,
-        "line": null,
-        "column": null,
-        "params": null,
-        "allocatedCategory": "root",
-        "allocatedName": "[root]"
-      }
-    },
-    {
-      "pid": 0,
-      "tid": 0,
-      "ph": "B",
-      "name": "beta",
-      "ts": 1,
-      "args": {
-        "line": 54,
-        "column": 12,
-        "funcLine": "1",
-        "funcColumn": "1",
-        "name": "beta",
-        "category": "JavaScript",
-        "parent": 1,
-        "url": "/Users/example/test_project/node_modules/metro-runtime/src/polyfills/require.js",
-        "params": null,
-        "allocatedCategory": "JavaScript",
-        "allocatedName": "beta"
-      }
-    },
-    {
-      "pid": 0,
-      "tid": 0,
-      "ph": "E",
-      "name": "beta",
-      "ts": 2,
-      "args": {
-        "line": 54,
-        "column": 12,
-        "funcLine": "1",
-        "funcColumn": "1",
-        "name": "beta",
-        "category": "JavaScript",
-        "parent": 1,
-        "url": "/Users/example/test_project/node_modules/metro-runtime/src/polyfills/require.js",
-        "params": null,
-        "allocatedCategory": "JavaScript",
-        "allocatedName": "beta"
-      }
-    },
-    {
-        "pid": 0,
-        "tid": 0,
-        "ph": "B",
-        "name": "gamma",
-        "ts": 4,
-        "args": {
-          "line": 54,
-          "column": 12,
-          "funcLine": "1",
-          "funcColumn": "1",
-          "name": "beta",
-          "category": "blah",
-          "parent": 1,
-          "url": "/Users/example/test_project/node_modules/metro-runtime/src/polyfills/require.js",
-          "params": null,
-          "allocatedCategory": "JavaScript",
-          "allocatedName": "beta"
-        }
-      },
-      {
-        "pid": 0,
-        "tid": 0,
-        "ph": "E",
-        "name": "gamma",
-        "ts": 13,
-        "args": {
-          "line": 54,
-          "column": 12,
-          "funcLine": "1",
-          "funcColumn": "1",
-          "name": "beta",
-          "category": "blah",
-          "parent": 1,
-          "url": "/Users/example/test_project/node_modules/metro-runtime/src/polyfills/require.js",
-          "params": null,
-          "allocatedCategory": "JavaScript",
-          "allocatedName": "beta"
-        }
-      },
-    {
-        "pid": 0,
-        "tid": 0,
-        "ph": "B",
-        "name": "beta",
-        "ts": 4,
-        "args": {
-          "line": 54,
-          "column": 12,
-          "funcLine": "1",
-          "funcColumn": "1",
-          "name": "beta",
-          "category": "blah",
-          "parent": 1,
-          "url": "/Users/example/test_project/node_modules/metro-runtime/src/polyfills/require.js",
-          "params": null,
-          "allocatedCategory": "JavaScript",
-          "allocatedName": "beta"
-        }
-      },
-      {
-        "pid": 0,
-        "tid": 0,
-        "ph": "E",
-        "name": "beta",
-        "ts": 10,
-        "args": {
-          "line": 54,
-          "column": 12,
-          "funcLine": "1",
-          "funcColumn": "1",
-          "name": "beta",
-          "category": "blah",
-          "parent": 1,
-          "url": "/Users/example/test_project/node_modules/metro-runtime/src/polyfills/require.js",
-          "params": null,
-          "allocatedCategory": "JavaScript",
-          "allocatedName": "beta"
-        }
-      },
-    {
-      "pid": 0,
-      "tid": 0,
-      "ph": "E",
-      "name": "[root]",
-      "ts": 14,
-      "args": {
-        "name": "[root]",
-        "category": "root",
-        "url": null,
-        "line": null,
-        "column": null,
-        "params": null,
-        "allocatedCategory": "root",
-        "allocatedName": "[root]"
-      }
+  {
+    "pid":0,
+    "tid":0,
+    "ph":"B",
+    "name":"[root]",
+    "ts":0,
+    "args":{
+      "name":"[root]",
+      "category":"root",
+      "url":null,
+      "line":null,
+      "column":null,
+      "params":null,
+      "allocatedCategory":"root",
+      "allocatedName":"[root]"
     }
-  ]
\ No newline at end of file
+  },
+  {
+    "pid":0,
+    "tid":0,
+    "ph":"B",
+    "name":"beta",
+    "ts":1,
+    "args":{
+      "line":54,
+      "column":12,
+      "funcLine":"1",
+      "funcColumn":"1",
+      "name":"beta",
+      "category":"JavaScript",
+      "parent":1,
+      "url":"/Users/example/test_project/node_modules/metro-runtime/src/polyfills/require.js",
+      "params":null,
+      "allocatedCategory":"JavaScript",
+      "allocatedName":"beta"
+    }
+  },
+  {
+    "pid":0,
+    "tid":0,
+    "ph":"E",
+    "name":"beta",
+    "ts":2,
+    "args":{
+      "line":54,
+      "column":12,
+      "funcLine":"1",
+      "funcColumn":"1",
+      "name":"beta",
+      "category":"JavaScript",
+      "parent":1,
+      "url":"/Users/example/test_project/node_modules/metro-runtime/src/polyfills/require.js",
+      "params":null,
+      "allocatedCategory":"JavaScript",
+      "allocatedName":"beta"
+    }
+  },
+  {
+    "pid":0,
+    "tid":0,
+    "ph":"B",
+    "name":"gamma",
+    "ts":4,
+    "args":{
+      "line":54,
+      "column":12,
+      "funcLine":"1",
+      "funcColumn":"1",
+      "name":"beta",
+      "category":"blah",
+      "parent":1,
+      "url":"/Users/example/test_project/node_modules/metro-runtime/src/polyfills/require.js",
+      "params":null,
+      "allocatedCategory":"JavaScript",
+      "allocatedName":"beta"
+    }
+  },
+  {
+    "pid":0,
+    "tid":0,
+    "ph":"E",
+    "name":"gamma",
+    "ts":13,
+    "args":{
+      "line":54,
+      "column":12,
+      "funcLine":"1",
+      "funcColumn":"1",
+      "name":"beta",
+      "category":"blah",
+      "parent":1,
+      "url":"/Users/example/test_project/node_modules/metro-runtime/src/polyfills/require.js",
+      "params":null,
+      "allocatedCategory":"JavaScript",
+      "allocatedName":"beta"
+    }
+  },
+  {
+    "pid":0,
+    "tid":0,
+    "ph":"B",
+    "name":"beta",
+    "ts":4,
+    "args":{
+      "line":54,
+      "column":12,
+      "funcLine":"1",
+      "funcColumn":"1",
+      "name":"beta",
+      "category":"blah",
+      "parent":1,
+      "url":"/Users/example/test_project/node_modules/metro-runtime/src/polyfills/require.js",
+      "params":null,
+      "allocatedCategory":"JavaScript",
+      "allocatedName":"beta"
+    }
+  },
+  {
+    "pid":0,
+    "tid":0,
+    "ph":"E",
+    "name":"beta",
+    "ts":10,
+    "args":{
+      "line":54,
+      "column":12,
+      "funcLine":"1",
+      "funcColumn":"1",
+      "name":"beta",
+      "category":"blah",
+      "parent":1,
+      "url":"/Users/example/test_project/node_modules/metro-runtime/src/polyfills/require.js",
+      "params":null,
+      "allocatedCategory":"JavaScript",
+      "allocatedName":"beta"
+    }
+  },
+  {
+    "pid":0,
+    "tid":0,
+    "ph":"E",
+    "name":"[root]",
+    "ts":14,
+    "args":{
+      "name":"[root]",
+      "category":"root",
+      "url":null,
+      "line":null,
+      "column":null,
+      "params":null,
+      "allocatedCategory":"root",
+      "allocatedName":"[root]"
+    }
+  }
+]
\ No newline at end of file
diff --git a/src/import/__snapshots__/trace-event.test.ts.snap b/src/import/__snapshots__/trace-event.test.ts.snap
index c416b4fe..32c2403b 100644
--- a/src/import/__snapshots__/trace-event.test.ts.snap
+++ b/src/import/__snapshots__/trace-event.test.ts.snap
@@ -404,6 +404,41 @@ exports[`importTraceEvents event reordering name match: indexToView 1`] = `0`;
 
 exports[`importTraceEvents event reordering name match: profileGroup.name 1`] = `"event-reordering-name-match.json"`;
 
+exports[`importTraceEvents hermes profile with multiple frames 1`] = `
+Object {
+  "frames": Array [
+    Frame {
+      "col": null,
+      "file": null,
+      "key": "[root]:null:null:null",
+      "line": null,
+      "name": "[root]",
+      "selfWeight": 2,
+      "totalWeight": 14,
+    },
+    Frame {
+      "col": 12,
+      "file": "/Users/example/test_project/node_modules/metro-runtime/src/polyfills/require.js",
+      "key": "beta:/Users/example/test_project/node_modules/metro-runtime/src/polyfills/require.js:54:12",
+      "line": 54,
+      "name": "beta",
+      "selfWeight": 12,
+      "totalWeight": 12,
+    },
+  ],
+  "name": "pid 0, tid 0",
+  "stacks": Array [
+    "[root] 1.00µs",
+    "[root];beta 12.00µs",
+    "[root] 1.00µs",
+  ],
+}
+`;
+
+exports[`importTraceEvents hermes profile with multiple frames: indexToView 1`] = `0`;
+
+exports[`importTraceEvents hermes profile with multiple frames: profileGroup.name 1`] = `"simple-hermes.json"`;
+
 exports[`importTraceEvents invalid x nesting 1`] = `
 Object {
   "frames": Array [
@@ -1321,7 +1356,7 @@ Object {
     Frame {
       "col": null,
       "file": null,
-      "key": "[root] {\\"name\\":\\"[root]\\",\\"category\\":\\"root\\",\\"url\\":null,\\"line\\":null,\\"column\\":null,\\"params\\":null,\\"allocatedCategory\\":\\"root\\",\\"allocatedName\\":\\"[root]\\"}",
+      "key": "[root]:null:null:null",
       "line": null,
       "name": "[root]",
       "selfWeight": 2,
@@ -1330,7 +1365,7 @@ Object {
     Frame {
       "col": 12,
       "file": "/Users/example/test_project/node_modules/metro-runtime/src/polyfills/require.js",
-      "key": "beta {\\"line\\":54,\\"column\\":12,\\"funcLine\\":\\"1\\",\\"funcColumn\\":\\"1\\",\\"name\\":\\"beta\\",\\"category\\":\\"JavaScript\\",\\"parent\\":1,\\"url\\":\\"/Users/example/test_project/node_modules/metro-runtime/src/polyfills/require.js\\",\\"params\\":null,\\"allocatedCategory\\":\\"JavaScript\\",\\"allocatedName\\":\\"beta\\"}",
+      "key": "beta:/Users/example/test_project/node_modules/metro-runtime/src/polyfills/require.js:54:12",
       "line": 54,
       "name": "beta",
       "selfWeight": 12,