AFAICS the Stylizers.ofx belongs to the NewBlue effects.
Check that your Antivirus is not blocking the program from accessing the effects - by temporarily disabling your Antivirus and start the program again.
If it loads then you need to add exceptions, for the program and NewBlue folders, to the Folder / Ransomware protection features - how you do this will depend on the AV program.
I found a solution: I just renamed file by adding .org end of file name, just in case. Now program works. It seems to me that earlier version(s) have left this one behind and that was the problem.
The other issue I had was after upgrading to Windows 11: Movie Edit -program didn't start at all; I got only splash screen and nothing else. Splash screen disappeared after a while. I am not sure but it may have to do something with file named "riched20.dll" which I found out by browsing internet when I had a problem with an other program. After following instructions from internet many odd issues solved. This dll -file has something to do with rich text format and it seems to be crucial for many programs running under Windows.
I suspect Now program works because you have, in effect, disabled "Stylizers" from working! You say you changed the file extension from ".ofx" to ".org". The .ofx extension indicates that it is a file conforming to the Open File Exchange protocol, so usable as a plug in within MEP. .org is a web address extension (clearly not usable within MEP)!
I'm glad to hear that you have resolved a number of issues with various programs by making changes to that .dll you list. Though I'm honestly not sure how such a file interacts with MEP/MS.