OK this is a difficult one because I don’t know what triggers the behaviour. But I DO have this issue from time to time (maybe once everyday?)…
Say, you want to increase a value like gain of a clip from the info line, if you put the cursor on top of the value and scroll with the mouse scrolling wheel, the value must go up or down. But sometimes it doesn’t. The workaround is to go into preferences menu and come back. Magically it starts working again 