Version Info

• Minecraft, 1.21.8
• Chunk Loaders, 1.2.9 downloaded from modrith

Are you using OptiFine?: No, i tried using vanilla renderer and Sodium too, but this changed anything.

Description of the Bug
I tried disabling all the mods and and re-enabling them. Now all my single chunk loaders disappeared (I just use single ones btw), but you can still see them loaded in the map and the game still renders them.

Steps to Reproduce
I am on EndeavourOS, downloaded PolyMC launcher v7.0 from Flatpak, mod loader fabric, loaded mods Chunk Loaders, Fabric API, SuperMartijn642's Config Library, SuperMartijn642's Core Lib (the base ones). In the screenshots there is the complete list of my mods, but the bug still exists with just theese necessary mods.
My custom keybind for the map view has been reset too.

Screenshots

For any questions feel free to contact me and I'll be happy to support this mod I really love

There is not much I can do about loading a save without the mod installed. If you load a save without Chunk Loaders, Minecraft will remove all its blocks as those blocks just don't exist then.
What chunks a player has loaded is stored in separate save data, hence it remains and gets loaded again when the mod is installed again.

The best I can do is scan chunks whenever they are loaded to see whether chunk loaders that were in those chunks still exist and if not, remove them from the Chunk Loaders data.
I cannot however bring the blocks back as that data is gone.

Thank you for responding in such a little time, I appreciate it.
I'm not a developer, but if you could add a patch of it would be great, also if it would be something to do in creative or via commands.
Or maybe is there a way to implement a "backup" system to restore just deleted chunk loaders?