Limiting range with servo ease

[bl4s7er]

I am trying to implement servo ease control but I require a limited range of motion.

        ServoData servoData;
        servoData.speed = 60.0;
        servoData.ease = 0.2;
        servoData.position = 0;
        const int minUs = 1500;  // minimum timer width in microseconds for 0 degrees
        const int maxUs = 2400; // maximum timer width in microseconds for 180 degrees
        servo1.attach(SERVOPIN1, minUs, maxUs);
        servo1.setFrequency(SERVOPIN1, 50);

        float ye1 = 0.3;

        servo1.write(SERVOPIN1, servoData.position);
        delay(2000);

        while (true) {
          // Ensure position is within the range 40 to 180
          if (ye1 <= 0.0) {
            servoData.position = 180;
          } else if (ye1 >= 1.0) {
            servoData.position = 0;
          }

          ye1 = servo1.write(SERVOPIN1, servoData.position, servoData.speed, servoData.ease);
          ESP_LOGI(TAG, "ye1: %f, position: %d", ye1, servoData.position);

          delay(5);

I tried using the minUs/maxUs to limit it, and it kind of works,

But when the while loop is running in the first iteration before updating the position when ye1 =~ 0.2 then the servo rotates to what looks like close to position 0 then rotates to 180 and then rotates to the position = minUs. From this point it cycles between 180 and position =minUs (good)

Its the initial motion that I dont understand. Essentially I want to limit it to 45deg to 180. It should never go below 45. Does anyone have any recommendations?