Do you mean that even trying this (told two posts ago), you can't?

"(...) it happens when the option keep effects running without input in Edit --> Settings is enabled. Disabling it, the wheels work (...)"
A GitHub contributor enlighted this: it's a known issue*, it happens when the option keep effects running without input in Edit --> Settings is enabled. Disabling it, the wheels work, yaaay! I finally could control the gate ^-^

*https://github.com/LMMS/lmms/issues/5546
Well, I could replicate the error and I don't believe it's just bad luck. All my other programs run with no problems! I may be the first one to have some different setting on Windows 10 and developers missed this specific case (something understandable). So, I'll report this as a bug and make all th...
I know, I had the 1.2.1 at first (if you see the previous post, you'll see that I've made the tests with 1.1.3 and 1.2. 1 ). I've tried 1.2.0 just to check which version was the last one where it worked on Windows 10: it was the 1.1.90. It seems there's something wrong since 1.2.0. So, I will use th...
Update:

MACHINE 1
  • Windows 10 / LMMS 1.2.0 = doesn't work
  • Windows 10 / LMMS 1.1.90 = works
New info! I've made more tests, on this very machine ("machine 1") and in a desktop one ("machine 2"), opening my project and trying to move the wheels. Here are the results: MACHINE 1 Ubuntu 18.04 / LMMS 1.1.3 = works Windows 7 / LMMS 1.1.3 = works Windows 7 / LMMS 1.2.1 = works...
Yes, I've opened the project, the parameters are different and the dials are still frozen. Those parameters can be perfectly changed under other OS, that's clear (I can do it under Ubuntu on this very PC as well) If you want to know something about my mouse, do not hesitate for asking. I'm left hand...
Nope! I can't manually add a value to the decay and gate wheels (I can do it with the W/D one). The mouse didn't even change when passing over them (it changes when I pass it over the W/D one): it's like there are no controls at all in that zones. I've tried to do it, after clossing LMMS, using my l...
Hit with the longshot 😆 yes, two screens! It's a laptop and the main one is the external one.

Yes, I can reproduce it in a new project. They seem like useless painted wheels! I'm going to send you the project via IM, thanks!
Then both must be blocked by s.c. Global-automation . Right-click each of them and choose Remove Global-automation Let us know the outcome :) I've removed global-automation and still not able to move the wheels! >.< I confirm that there is nothing going to edit global-automation and see nothing. I ...