I noticed that when switching to the TF2 Engineer skin, the Expanded inventory size mod (https://mods.factorio.com/mod/expanded-inventory-size) does not seem to apply to the player. I tried with some other skin mods and they seemed to behave correctly.

After testing with another mod that depends on !skins, it also didn't apply the inventory changes. So it seems to be a compatibility problem between !skins (https://mods.factorio.com/mod/skins-factored) and the inventory mod.

Currently, the inventory mod modifies the character prototype, and !skins doesn't copy the inventory size data when switching between skins. I recommend forwarding the issue to both mod pages, since it could be fixed on either side. Thanks for the feedback tho :)

I see, thanks for the response! Really enjoying the skin otherwise.