No OTF fonts showing in the software

Hello there,
I’m totaly new to Fontbase. I’m a free user as well.
I have installed lots of OTF fonts on my system. I can only see the TTF fonts. Is there any restriction for free users?

infos:
Windows Edition Windows 11 Pro for Workstations
Version 22H2
OS build 22621.521

fontbase 2.17.5

Hello @abjim, thank you for your post, welcome to the forum and sorry for the delay.
There are no limitations regarding otf/ttf files between the free and subscribed users.
Does this also happen with fonts that only have an otf version without a ttf counterpart added to FontBase?
Thank you again,
Yuriy
FontBase Dev Team