Adafruit Trinket M0 (C/W RGB DotStar LED)

I’m Confused!
I updated the on board CircuitPython 2.x to 3.x and the RGB DotStar LED started to behave differently. The example Python script is the same in both versions.
Any ideas?

https://youtu.be/WSzNuB82A3s

The ItsyBitsy M0 has the same behaviour when updating CP 2.x to 3.x