emelFM2 bug?

I have recently had an unpleasant experience. I have tried to rename a
folder "Nirvana" to "nirvana" using emelFM2 on an external harddisk FAT 32
partition. The folder disappeared instantaneously. Now, I am wondering
whether it is because of the FAT32 partition mounted with an UTF-8 charset,
or whether it is a bug in emelFM2.

I would just like to know what happened, as I think I had this folder
backuped on a CD. Thanks

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