Thanks, this is main assets alright. That is interesting that this didn't take.
Can you run through the steps in my previous post again. This time please also delete the patch.[long, random string of numbers and letters] file.
If this doesn't help, can you check if assets_swtor_main_90to92 has been recreated when you try to patch?
I tried the process again (I missed the [long, random string of numbers and letters] file.before, I wasnt sure if that was one needing deleting). I managed to delete all files listed.
The launcher is now stuck at the same point 'Installing Main Assets 93' but is now at 28%
I also checked and 'assets_swtor_main_90to92' has been recreated each time