Well, in past, there have been lots of problems, where the Skydome device FN Creative 1.0 was replaced by the Day Sequence Device, and the UEFN Feature sample island had to be fixed.
FN Creative Islands were force updated on the published server, but the code had to be updated. Replacing Skydome with Day Sequence Device automatically in UEFN back in 31.00??
There are loads of threads. This became so complex that just gave up following this!