I'm running a windowed Monster Hunter Rise on one split and forcing it into borderless using the 'Remove Borders, Size to Full Screen' scripted function. After a minute of the game being launched, the DisplayFusion taskbar or taskbars (depending on my split config) disappear as if disabled. When exiting the game, the Windows taskbar takes up the entire monitor for a moment ignoring splits before resizing to the proper split size. Around 30 seconds after this the DisplayFusion taskbar/s will reappear.

I've only tested a few games with this setup but this seems to be the only one so far.

Sure. It's all in here. The DF taskbars disappeared at 7:10PM and they reappeared a minute or so later after I closed the game.

Sorry for the late reply.

They're not autohidden as far as I can tell.
And it seems this is the only game that it occurs on that I've encountered.

Tried both of them and neither worked. I tried messing with 'Delay before checking match conditions' and set the frequency to Once-per-Process name just in case but nothing.

What's interesting is if I maximize a window on 1.1, the 'disabled' taskbar, it doesn't maximize vertically entirely. It's like there's a phantom taskbar there that can't be accessed even when bumping the bottom of the screen with the mouse.

My current trigger is:
Borderless-window function
Wait 60 seconds
Enable all taskbars

I'll keep updating this thread with more games that I find that this happens in but I have a feeling it'll be few a far between since all other games seemed to work fine (admittedly I've only tried a handful though).