Welcome to TVPaint Community forums !

Hallo everyone,
I wasn't able to find the solution for this little, but annoying issue.
I can't link sliders that control the opacity of the light table. It doesn't matter whether I turn "link sliders" on or off. Animated gif showing the issue is attached. I remember It actually working, Idk what an I doing wrong or what the problem might be.
I'm running 64 bit version on Windows 10, TVpaint 11.5.1 Professional.
Thank you in advance!
/Olga

Highlight more than one?

sorry, you are getting it a bit wrong. "link slides" links all the selected slides on one side, but not the 0 frame itself. if you select more frames on either side of the light table, they will slide linked. currently you only have 1 frame selected on each side, so there is nothing to link to. sliding the 0 frame will decease/increase the whole light table. so there is perfect logic to how it works.
here is a video attached:

Thank you for the answers! Yep, I got it wrong - it only works when all of the frames are highlited, and you can't link them to the zero frame. But the way it works now is more thean enough for my needs, thanks!