Problem with subtitles auto-detection

[Seldaek]

Hello, I set everything up some weeks ago to be able to auto-load the correct subtitles, it worked great at first, then about a week or two ago it stopped working, I have no idea why as I didn't mess with the settings since it was working.

My settings are as follow:
Default subtitle: 2 (I tried 0 or 1 too, didn't change anything)
Default subtitle language: fr

The files are named like this:
Title.avi
Title.en.srt
Title.fr.srt

BSPlayer detects the two subs correctly but it choose the first one and I don't understand why.

Thank you for helping, bye!