Controller Lane locked write (red)

Cubase 11 issue. I keep getting my controller lanes locking (Red). Does not seem to be an issue when playing notes & using CC1 mod wheel. However if I try to write CC1 mod data after I have played the part the lane stays red. As if it thinks I am still writing data even though the write button is off.
The only way out is to disable then enable. Not ideal.

Anyone else experiencing this? Seen a few posts on other sites about it so not just myself

I had a bunch of issues with all of my controllers including cc121 until I did a clean install of Steinberg MIDI and USB drivers from the Steinberg site. Now all is working good.

I will give this a try later to see if it helps.