Error after 4.17 update: "The Asset 'map_name.umap' failed to save."

Development World Creation
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1

I updated to 4.17 last night, and since the update when I try to save my map, it gives me the following error

I tried to save a copy of the map, same error.
I tried to delete the BuiltData file and generate a new one, same error.
I made sure I only have one instance of UE4 editor open.
After a google search, I’ve came up empty. so, I’m wondering if anyone here had this issue before.

Now, what’s even more bizarre is that if I click “Continue” it prompts me with a “Packages Failed to Save” window but it actually DOES save my changes into the map. Could this be a weird 4.17 bug?

Thanks,
HP

2

I have the same problem as well. It’s probably a 4.17 bug.