Problems with multiple displays

I am struggling with Windows 11's handling of multiple displays....

I have three displays:
A: AOC 2560x1440 monitor connected via Displayport - this is configured as the Primary display
B: AOC 2560x1440 monitor connected via Displayport
C: Hisense HD TV, connected with HDMI via a Sony STR-DN1030 AV receiver. The TV and receiver are not powered on all of the time.

I have these displays configured as follows in System...Display:
C=3 (left), B=2 (centre), A=1 (right).

The above configuration works until I turn off Display C (the TV). When turned off, the other two displays switch places as follows:
A=1 (left), B=2 (centre), C=3 (right)

...so the monitors switch from a 3-2-1 setup (left to right) to a 1-2-3 setup. This is very confusing, as I then need to start dragging my mouse in a counter-intuitive direction to move from B to A. B is physically to the left of A, but I need to drag the mouse from right to left to get from B to A.
If I turn on the TV (C) things go back to normal.
I also find that when I turn off the TV (C) some of the items that I have on the desktop of B move to A:
- Rainmeter widgets
- App windows
This behaviour seems to be random - sometimes all of them move to display A, sometimes only some of them, sometimes none. This is also very annoying/confusing.

How can I get Windows to remember the relative positions of A and B, even when B is switched off, and to stop randomly moving items from one display to another?

I am running Windows 11 Pro 23H2, build 22631.3155. My graphics adapter is a ZOTAC GeForce GTX 1660 SUPER 6GB.

I have to be honest with you, it sounds frustrating. I run 6 monitors, I also have a GeForce GTX 1660 SUPER and I don't have this issue. I accidentally turn a couple of them off all the time due to the power button position and nothing changes. I am wondering if fellow monitor lover @Edwin knows of a program that can combat this?

Try turning off in display settings > remember windows locations based on monitor connection. With The TV disconnected.

Then restart, get back to the desktop, turn back on the tv, configure the monitors how you like, and check the box. Then restart again. See what happens. Make sure the primary monitor (main monitor) is the one directly connected to your machine, not the tv

Also, does your tv support CEC? Turn that on if possible. Could also be the receiver not playing nice. Maybe connecting the tv via hdmi to the computer directly would fix it, would be interesting.

Edit, I also found people online recommending this program, but I have no experience with it.

That’s a good idea Andrew

Just for kicks. Have you tried switching which monitor connects to which input on the GPU? But it really shouldn’t matter and would be weird if it fixed it.