I want to address this issue to see if I’m not the only one seeing it.
This started happening after Plasma 6.4 update I think, currently I’m running Plasma 6.4.2
After launching Tiles Editor with Meta+T and editing the layout on my second monitor, if I logout/reboot, the changes are lost. Strangely, this doesn’t happen with editions made to my principal monitor layout.
Is this a known issue? I can provide a video if needed to understand better what I’m trying to explain.