BlueArp volume crashes Renoise

BlueArp volume crashes Renoise 3.3.1
Build jan 11 2021

see this video:

Steps to reproduce look like this:

Launch Renoise
Put BlueArp on instrument 1
Put Arminator on instrument 2
Route Bluearp via midi to Arminator
Choose a Bluearp Pattern like 17
Choose a Arminator patch like 01
Make a group
make a subgroup
Make a series of volume changes where the initial row triggering the arp has no volume, but row 2 has the first 01
last row should have 60

Expected results:
Arp plays and volume increases

Actual results:
Renoise crashes

image :