Busch Jäger “all group off” in Version 2.12.01 / 14.6.2021 assignment creates “color effect”

Downgrade to 2.12.01 (later version completely broken with BJ switches) make Busch Jäger switches work again in Phoscon GUI, but assignment is broken, too. A “all group off” assignment creates a “color effect”. Group off not possible to configure.