So, I was trying to load a torrent file which I had downloaded its file/content already from another source. I put it on Tixati in offline mode, choose the file location as DL location, and pressed Force Check as always.
But checking didn't start this time and torrent status didn't change/update.

So I took a lock on Event Log tab and found that message "files check interrupted".
https://i.ibb.co/KjdwhB2G/2025-07-13-131726.png

At first I thought something was wrong was the file or the torrent
So I did this:
1) I tried to check the file against the torrent via another program and the check passed with no errors at all.
2) I tried to create a new seed/torrent of the file via Tixati, but I got a weird error under status: "new seed scan file length mismatch" which left me with more question marks than before.. that I thought there was something wrong with my disk file system, so I did a check and got no errors.

After some struggle (for days) I noticed that the Last Modified Date of the file was set to "1970-01-01 02:00:00 AM" for some odd reason. (which is = "1970-01-01 00:00:00 AM UTC" as my system time zone set to UTC+2)
https://i.ibb.co/MwFCtD5/2025-07-13-130239.png

So after setting the Last Modified Date to more recent date (even if +1 minute after "1970-01-01 00:00:00 AM UTC") the check works without any problem in Tixati.

I tried to reproduce that error with another file by setting its Last Modified Date to "1970-01-01 00:00:00 AM UTC" and I got the same error.
https://i.ibb.co/HLysp3Lr/2025-07-13-131654.png