All non-referenced content failed to load

I just noticed that all my non-referenced content is no longer loadable. I can see thumbnails in the editor but, when I press any button on the content it says “Failed to Load assets”. This happened to anything that was not referenced in Blueprints, Levels etc. It happened on relatively fresh project, so it didn’t affect a lot, but still, all custom fonts and images are gone.

What’s the deal with that!?

did you cleared any cache, memory places, temp files, registeries in windows pc where this project exists?

I probably did (when recompiling c++ scripts manually), but I copied these assets directly into these folders, so it shouldn’t have deleted anything. They are still there physically.
Is there a way to reimport them, without “right mouse button” > “Reimport” as that does not work anymore on these?

yes, if you have the same engine version or newer version of the engine.
create a new project and copy the folders from content folder from the old project and paste them in the new project content folder , it should solve the issue if the assets are not broken.

Do you know why this happened? I don’t want to deal with this, especially when project gets bigger.

it has many reasons, some I will write.
1: if engine sees the files non-versioned
2: if engine sees files untrusted/ripped.
3: if engine sees files was unpacked from a .pak file
4: if the files are encrypted using the old project and user trying to load them in the new project but they are encrypted and engine will not process them in the new project…
5: if the files are compressed by external archivers or encrypted
6: if the files don’t have their original asset source file in the project from which the current not opening file is deriving.

there are tons of this kind of security checks, you can google them and learn more

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Thank you for explanation. Today I noticed that the engine recognized these as new files. I didn’t get to changing anything yet. I pressed import button and everything is loaded again. Hopefully this will not happen with files that I modify, e.g. image settings.

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