You cannot use skin packs, or download purchased mods. I have only 1 world. My friend also experiences the same bug. Please fix it because I just bought a mod and I would like to use it. Thanks!
MCPE-76061
Cannot Use Purchased Items on my Microsoft Account (Can't download bought mods or use skin packs))
Resolved
Cannot Reproduce
0
Fixed it! I tried closing it and reopening it, but I never tried deleting it and re installing it.