Open app, add new note, press tick-mark sign (`) 3 times to create a markdown code block, insert text from clippboard, everything works and the text is properly formatted.
After pasting a text like this:
.vs
Debug
x64/Debug
*/*.vcxproj.filters
*/*.vcxproj.user
*/*/*.vcxproj.filters
*/*/*.vcxproj.user
The app compeltely freezes.

I found out, that the issue happens when you have the markdown code block, and you want to write */**, it instantly breaks.
Alternatively, try pasting the above mentioned code into a markdown code block.
All settings are default - I only set my language to English and set-up a nextcloud connection.
This means that there is an issue with the markdown processing and maybe it tries to format text inside of a code block? Since an asterisk (*) means italic text? Not sure.
There is no log output (enabled + debug -> nothing relevant appears in the log file
There is no log output (enabled + debug -> nothing relevant appears in the log file)
Confirmed, thank you for reporting.
@Waqar144, another code block regression.
A quick fix for this would be to use ```sh, meanwhile I will disable comments highlighting in no language code block.
There now is a new release, could you please test it and report if it works for you?