Window scrolls very fast after playing video or showing image

[Flasher404]

OnlyM ver 1.6.0.6. After playing a video or showing image scrolling up or down goes very fast. Then later it's back to normal.
I discovered that if I click on an open space (a.k.a. background of onlyM window) scroll speed goes back to normal

I didn't notice this until I had enough items in list so had to scroll up or down to select what I wanted.

OnlyM works fine, I love it for meetings. This is just a minor issue that popped up and is slightly inconvenient.

Running on Windows 10 Pro ver. 20H2, build 19042.685

[Flasher404]

Additional information about this issue: I have discovered that if OnlyM is not selected by mouse (not active window) it still reacts to mouse scroll information and scrolls really fast. If it is selected by clicking the header or any open white space, the scroll is normal. I just discovered that while showing someone else how to use it.

[Flasher404]

Further info: The fast scroll only occurs when JWLibrary is selected on either screen. Select something else and OnlyM is fine.