As the summary said, my custom selected skin keeps setting itself to Alex slim when supposed to be set to Steve wide each time after closing Minecraft Bedrock for Windows 10 & 11. It remembers the selected cape just fine but defaults to slim. This has only happened after the current update and from what I’ve seen, this was an old bug in a previous version from 5 years ago. How on earth did Microsoft/Mojang manage to make this bug resurface like this? The skin I’ve had designed is meant for Steve wide and not Alex slim. Screenshot 1 is what happens, screenshot 2 is for comparison.
We're tracking this issue at MCPE-189739, so I will close this ticket as a duplicate.