Windows move after monitor goes standby and back
Fedora38, Gnome 44.5, X11, no wayland. 2 displays:
eDP connected 1920x1080+0+310 (normal left inverted right x axis y axis) 309mm x 174mm DisplayPort-1 connected primary 3840x2160+1920+0 (normal left inverted right x axis y axis) 600mm x 340mm
The laptop screen on the left, a 4K monitor ("primary") on the right, it is LG UD58, connected via USB-C->DP.
The system is configured after 15min to lock up, blank the screen and monitor goes off.
PROBLEM: After unlocking, all windows on the right monitor move to the right so their right bottom corners are at the right bottom edge of the 4K screen. Windows on the left screen do not move during this lock/unlock.
Any known fix for that? I could kinda understand if they moved to the laptop screen but to the right... Bizarre. Thanks,