3.12.0 changes don't work

Originally Posted by throsu (Post 2999489)

Device: Kobo Aura H2O
Firmware version: 3.12

Since last night I've noticed that my settings of a certain font type and dimension, as well as the paragraph setting doesn't produce any changes in the document (especially epub; however, for mobi files it does seem to work). I wonder what's wrong, given that there are exactly the same epub(s) that previously worked just fine in terms of these adjustments.

Thanks a lot!