Fader Problem in FX Mixer

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Hello everyone! I'm having problems with the faders in the FX mixer. I can't move them with my mouse by clicking and dragging, only with the scroll wheel and it's very slow. I've searched everything in the settings and online but I can't find anything.
I used to use my Oxygen 49 both as a midi keyboard and controller on REAPER, but I haven't set it up on LMMS, so I highly doubt that's the problem.
gambero420 wrote:
Mon Jun 15, 2020 12:46 pm
Hello everyone!
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I'm having problems with the faders in the FX mixer. I can't move them with my mouse by clicking and dragging, only with the scroll wheel and it's very slow. I've searched everything in the settings and online but I can't find anything.
I used to use my Oxygen 49 both as a midi keyboard and controller on REAPER, but I haven't set it up on LMMS, so I highly doubt that's the problem.

That is serious strange <|
please post your:
* Name of your Operative System (Windows/ Linux/ Mac) And subtype ('Home' 'Mint' '10.13' aso)
* lmms version
My LMMS version is 1.2.1, 64bit
I'm running Windows 10 Pro 1903

EDIT: I have found the problem, I can move the faders with my mouse ONLY if the LMMS window is on my main screen, not the external one. Any fixes?
gambero420 wrote:
Mon Jun 15, 2020 3:16 pm
EDIT: I have found the problem, I can move the faders with my mouse ONLY if the LMMS window is on my main screen, not the external one. Any fixes?
No fixes. LMMS does not have multi-monitor support! It is scheduled for 1.3