When I want to set the uppercase style to the text, nothing happens, and other letter styles do not work either. Also, when I select a child component that has an uppercase style, it is reset
Everything worked fine yesterday
I found that this does not work with Russian letters
All my text styles with Uppercase Cyrillic letters were reset to lowercase when I clicked on the component with them, even though the option was enabled.
Reverse switching does not work. When will this bug be fixed?
Same here with latin alphabet when with accents (French). 
Same trouble. Cyrillic letters
Same trouble. Cyrillic letters
Yap, Style have “uppercase” setting enabled, but it seems disabled in all instances.
Same trouble. Cyrillic letters. Please fix. Need to work
I am experiencing the same problem with danish special characters (æåø)
Same trouble. Cyrillic letters case not work 
The same problem. But not just with cirilic, also with some Azerbaijani letters like “ö” and “ə”
Same uppercase problem with Czech language 
JUST found out this myself with finnish letters (Ä,Ö,ä,ö), googled and came here. Must be a bug that has just recently appeared?
Doesn’t work uppercase function with Cyrillics fonts
The register is not switched!
video of the bug is here
Same thing with french.
Example: “ANNÉE” has become “ANNéE”
Same with the Greek glyphs
Same trouble. Cyrillic letters case not work
Same problem for me with Cyrillic
In Mac/Win/Chrome
Is there any workarounds?
Same, cyrillic. Help, deadline is so close!!!..
The same 