Digital Write HIGH/LOW stuck in state with no visible label

[whoisjake]

GIVEN:

3 fresh cores, all setup with WIFI, pulsating cyan....

EXPECTED:

I could open the tinker app view in the Android app and configure D7 pin on all 3 cores to digitalWrite, and toggle their HIGH/LOW status.

ACTUAL:

The first core's tinker app view was working as expected. I set the D7 pin to digitalWrite and was able to toggle it. The label changed from HIGH to LOW and the LED flashed accordingly. The second core's tinker app view worked the same. The third core, however, when selecting digitalWrite, I could toggle the pin to HIGH, but the label for "HIGH" was not visible and I was unable to set to LOW. When I clicked the pin, it would pulsate as if it was accepting input and I could see a blank space for the label to change, but the label would not change nor would the pin actually go to LOW.

After force closing the app and relaunching, it worked as expected on all 3 cores.

Have fun chasing this unicorn! :)