I've encountered the following bug twice in monkeypox CI running in Github Actions:

ERROR: Was unable to refine time trees:
augur refine is using TreeTime version 0.9.2

A value in x_new is above the interpolation range.

This error seems to be somewhat stochastic, i.e. if I rerun, it will often run successfully after bug.

This seems to be related to the upgrade of tree time from 0.8.6 to 0.9.2 @anna-parker @rneher

See here for log: https://github.com/nextstrain/monkeypox/runs/7955938588?check_suite_focus=true#step:6:177

Not sure how to reproduce - maybe run the monkeypox CI a few times locally until you get the error?