[Bug] [41] Compile format editor freezing

When I try to add a new format, or to “duplicate and edit” an existing format, it launches a new window and just freezes with a white screen (screenshot attached).
I had this issue in Beta 40, and after updating to 41 it still exists. I am wanting to do this because of another potential bug:
When I compile an ebook format (mobi), the result is changing the formatting for the main body text. I have left aligned text with 18pt paragraph spacing. But it just removes paragraph spacing and uses justified alignment. I have chosen “As-is” for the section layout, still it changes the formatting.

So I think there are two bugs here. Both preventing me from an effective compile and release.

Any suggestions how I could get the formatting to be preserved in the compiling till these bugs are fixed would be great. Note that the “Preserve formatting” option also does not work in this case.

Screenshot
https://ibb.co/MGWDS4k


https://ibb.co/MGWDS4k

Have in mind that this could be caused by a third party DLL.
I have experienced first hand this dialog freezing upon show up, due to the ASUS Sonic Suite II plugin and application, caused by “SS2DevProps.dll”.

How would I go about tracing this? I don’t have an ASUS machine, I have MSI. Any known issues with that?