In the beginning, I work with the SDK of Postscriptum (which is on UE 4.21), I have the toolchain for linux cooking installed.
My problem : The cooking process failed due to “Engine or game content is being referenced by DLC!”
Temporary solution : Move all the assets to the mod folder to fix it
Result issue : The mod has to reimport all the assets to work in game, so it make the mod really heavy instead of just using it. (the user will need to redownload the same asset)
Also the error by DLC! seem a little bit random, because in a lot of cooking, you will not have the same DLC errors, but some of them are quite persistent. (in this case a lot are coming back but some are new each cooking process)
Logs of the last cooking :
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