As the title said, my game is running with the .tmp extention and not the usual .exe, I had the same issue 2 days ago and it resolved itself when i created a new folder, but now it seems to be back.
Things i tried:
-Unchecking “read only” for my GW2 folder. It didn’t change anything AND the box rechecks itself when i close the properties.
-Making a brand new GW2 folder on a different HDD (it worked for 1 day, but this morning it decided to run as .tmp again)
If anyone have any idea on how to solve this, i would be eternally grateful to you!! GW2.tmp has like 15-20 fps at lowest settings and moving my camera makes it 1-3 fps