Just recently a player from my server reported that the founder skins where missing since we started using mods, and that this was the case on all servers he played on using any mods.
Since the mods running on the server are my own i started to look what caused this. I discovered that the PrimalGameData_BP_GenericMod that we all use as a template is simply missing the entries for the founder items.
Here is what you need to add to your mods PrimalGameData to make the founder items appear again:
I would advise all modders to add this to their mods so people have their founder items again.
On a side note: this could potentially also be used to give a player items when they spawn without editing the playerpawns inventory component! I haven’t tried this but it should work.