The mdf file is in under the folder, and name is exact the same, but Tixati seems can't check the file
If I rename it in Tixati, the file will be renamed too, but just can't force check it.
And you can see that the mds filename is in yellow, but the mdf file is grey.
https://i.imgur.com/b62KV16.png

Seems just happened on the files with mdf extension

Under qBittorrent has no problem, checking normal