Saw the screen glitch for the first time, thought the bug wasn’t fixed. Was running a pre-merge build. Uploaded new build, can’t get it to glitch again. 
Here’s a turtle setup that I enjoy. It’s an edge-triggered bouncing note sequencer, a pretty basic use case. Populate the pattern grid (0,0,1,4) with your favourite intervals, patch in a slow random gate to 2 to modulate the pattern.
I: @F 0 0 1 4
@DIR 35
@BOUNCE 1
@SCRIPT 1
M: @STEP
1: TR.P 1; CV 1 N @
2: @DIR + @DIR 170