You can download updated torrents without getting "file too large" error, by following these steps:  
1- Download and install Teracopy or any program that has an option to copy/move files if the size is different.  
2- Start the new (updated) torrent in a new folder.  
3- Stop the new torrent only after completing the phase of initializing files.    
4- You can just stop the old torrent. No need to close Tixati.  
5- Move all the new folder files at once with Teracopy (or a similar program) to the folder where you have the old torrent files. When you get Destination file already exists, click on More option, applicable to all files, then on replace all files if size is different.  
6- Move all the old folder content to the new folder. This time when asked, click on Overwrite all.  
7- Open Tixati and resume the torrent.

I solved the issue by renaming the file within Tixati files.

1- Stop the transfer
2- Rename the file
3- ForceCheck the file
4- Start the transfer

try enable Long Paths in Windows 11 or 10, search a tutorial

Does Tixati even support NTFS Long Paths? Otherwise we can enable it via regedit/gpedit all we want and it won't make any difference at all if the app itself doesn't make use of the Windows feature.

Please change the logic of Tixati so that when updating a torrent, mismatched files, provided that the old one is larger than the new one, are simply deleted and downloaded again. Thank you.

I hope they add the option to choose from, something like:

1) Default behavior (current)

2) Delete File (preferably to recycle bin with a warning) and re-download

3) If the old file is bigger than the new, add the ability to ignore size check, and start data check.
That's because in some cases, especially for cross-seeding the same file, the files may have different sizes, but the data of the smaller-file-size chunk, from both files, are identical, with the bigger file has some 00-bytes at the end of it (and sometimes with a few other bytes at the very end)
I've countered this often, especially on video files which is mostly large files, and keeping 2 versions of the same file just to cross-seed isn't the effecient way.

What do you think?