I do not know if this is often or no i am sorry it happen to you i like the types of posts you make as euro comics are very good maybe admin will give you apology here too
If you filter modlog by username you will discover that one lemmy.world admin banned you most likely using the “remove content” option thinking you were a spammer and a second lemmy.world admin restored your posts however the images most likely were lost even though the post wasd restored.