Failing to save map error when attempting to save project

Development World Creation
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1

the error is: Attempting to save bulkdata 115B78F24C8E8CE13B2F4DA12766130A with an invalid payload to package ‘/Game/_CORE/Overworld6’. The package probably needs to be reverted/recreated to fix this.

It fails to save the map I’m working in, Ive tried copying everything in the map into a blank map and then saving, and that works once before I get the same error.
I have tried duplicating the project, and this did not work either.

I’ve updated to 5.4 but was still getting the error in 5.3 and am still getting it now.

I am sure I am only running one instance of unreal.

2

It’s been a long time and you probably found the answer on Reddit.

Try unloading everything in the map, load the whole map, regenerate and save.

3

This is a good solution to the save error. Even if they’ve fixed it, posting this will help people searching the forum in the future with the same issue. Thank you elettrozero!