bypassin inserts/sends in mixer

Hi everybody,
suddendly the bypass inserts/send buttons in the mixer panel stopped working, and the relative key command (alt/option+click) stopped too…
Can anyone help me?
Thank you,


Try to Cubase Safe Start Mode. If it works in this mode, reset Cubase preferences, please.

Hi Martin,
it seems to be a problem only in some projects but I’ll try your advice…
Thank you ,