I’m a user Window 8.1 Traditional Chinese version. I had been struggling in how to load LUT files, like “35 Free LUTS” shortly after I installed Shotcut. Unfortunately, it appears that no reliable source could help until I found the following post by luck (LUT don't load in folder with é, è, à).
I initially downloaded the “35 Free LUTS” under a sub-path or a folder named in Chinese, which made the Shotcut unable to identify what I wanted to do. Having followed Kamigeek’s suggestion above, I copied the “35 Free LUTS” folder directly under C Drive. It works. Thanks Kamigeek.