Need Help for a Friend, any response helpful

[Tekoa]

I don't know how many people know if this particular glitch, but if you do a lot of work with meshes and particles, FH seems to spawn a random file in your meshes.  What I can't remember is what it's called ... I just remember that it duplicates itself over and over and then your FH will just crash every time you try to log on.

Am trying to help them ASAP so if anyone knows of this glitch or remembers the name of the file, please let me know.

[EmeraldDreams]

Any file with _0 or any other number following it is a duplicate.

[CloudFish]

This files usually pop up in the particles folder, the sky folder, or the my_object folder

[SilverTW]

It's called Particle copies and listen to CloudF's advice