I have a dual 1920x1200 monitor setup + a 4k TV for media consumption. I use different monitor profiles for this use case (1 profile for all 3 connected and one profile for only the 2 monitors). I also have a wallpaper slideshow enabled for all 3 displays. The issue is when I disable the 4k TV, the wallpaper from that TV (it's a 1080p wallpaper stretched to fit) moves over to the 2 monitors and maintains the same 4k resolution, causing the wallpaper to stretch across both displays. Going into wallpaper settings and reapplying the wallpaper fixes the issue... until the next wallpaper loads in from the slideshow. For some reason, it reapplies my TV's wallpaper even though the display is disabled (not disconnected). I've looked through the forums and this thread is similar to my issue although mine goes further because of the slideshow. I have attempted to create 2 different wallpaper profiles for my setup that are automatically loaded by changing the monitor profile but this hasn't solved anything.

I found a weird workaround for this. If I set my 4k TV to 1080p THEN create a wallpaper profile, after switching to just my 2 monitors, it fixes the issue and displays the correct wallpaper for the correct monitor and in the correct resolution. Before, it'd try to show display 3's (TV) wallpaper on display 1 (monitor). So, basically it is working now but it's an odd workaround. It will show the stretched wallpaper first but after the next wallpaper loads in from the slideshow, everything becomes correct.

I have tried restarting explorer with no results.

I'm not sure what you mean by monitor IDs but when I switched profiles, I checked the wallpaper settings and saw the wallpaper that was stretched was the one that was supposed to be on the other monitor. I've attached my settings. These are the settings AFTER my workaround.

Oh, okay. No, the monitor ID does not change.

Yes. I also tried disabling the option but nothing really changed as far as I could tell.

Ok, here

No, it isn't. I prefer to use my main monitor as my primary monitor because it breaks my Rainmeter if I change my primary monitor. I tried it just now and nothing really happened besides screwing up my Rainmeter.

Actually, I can't seem to recreate my original problem anymore. This is very strange. I guess we can transition to my new issue that came up. If I change to my 3 display profile, the wallpapers decide to do this weird tiling setup and the 3rd display (TV) doesn't show the correct wallpaper. I've attached a screenshot. I suppose this is similar to my original problem but now for a different display. I considered this a very minor problem because I'm primarily looking at my TV which is on a fullscreen movie/game so I don't really notice that my wallpapers are all screwy but this issue might point to a larger issue concerning the wallpaper management of DisplayFusion. Let me try disabling transitions.

Nope, disabling transitions didn't do much.

I only noticed this new issue after trying out my workaround which coincidentally was after updating to 9.4 Beta 4. Because of that, I can't tell you if my issues are a result of the beta or not. I'll update this thread after Beta 5 when that comes up.

Whatever you guys did seems to have fixed the problem. When I switch to have 3 displays all enabled, it briefly shows the weird tiling issue but after 3-5s, it refreshes and shows the proper wallpapers on the right displays. Everything seems to be working fine. Thanks so much for solving this. I'll update this thread if it somehow comes back but I think you guys fixed it.