Fopnu seems to never finish hashing a file if it's too large, larger than about 100GB. Tested on v1.25. Waited many weeks for the file to stop hashing and it never finishes hashing.

what OS?

does the percent advance at all?
how far has it hashed right now?
if you remove it and re-add it, does it stop at the same percent?

what type of file is it?

i couldn't even imagine having a file that big but if you like em big hey, that your choice.

get v1.26

it's fixed now