Brahim, I'm back with some news
It will take me a few days to prove the point 100%, but I guess I've finally addressed the issue
I've moved the files to a new folder in the same drive, thus removing all the security restrictions but keeping the files encryption
The same files got reported again by FR as no longer existing
Tried it 3 times and FR showed constant with the order of the files in the logs (i guess it follows the directory tree listing, right)
With this info in hand, I decrypted the 3 first files listed and ran create again
The files were no longer listed and the first file listed now is the 4th file listed then
Did it 3 times and the behaviour kept the same
A interesting question was tha ALL the other files in the folder were encrypted too. But just that ones got the warnings. I've figured out that the files listed are bigger than the others
It seems some kind of file size limitation when files are encrypted by windows.
I.E., in the same folder I have a bunch of files. Some as big as 700Mb. But just the biggest (1.1Gb) gets the warning in the logs. That heappens to every file in a dir bigger than a certain size I could not figure out.
It will take me 2 or 3 days to completely decrypt the folder (over 1.0Tb of files) to run FR's crate again but based in the tests I guess I'll get no warnings.
PS: the registry trick in the wiki solved the recycle bin warn just like magic