Sparsebundle backups displayed as folders with cryptic name on network drive I just updated from Yosemite to El Capitan. I have two backups, one being done with Time Machine and one with Carbon Copy Cloner. Both sparsebundles are stored on a NAS (Synology DS213). After the update everything still works as before. I can do backups and verifying them shows them as being there and functional.

However, navigating to the Backup folder on the NAS using Finder shows the sparsebundles as folders, not as sparsebundles. So instead of:
Backup.sparsebundle
I now have:
C33YRS~D

Trying to open them launches Terminal. I restarted the MAC and also the NAS, the sparsebundles are still displayed as folders.

What happened? Does anybody have the same issue? Can I just rename these files back to their original name or is there something else I am missing?
It seems to be an issue related to AFP/SMB and invalid SMB characters. My two sparsebundles have an asterisk in them, resulting from the computer name. An asterisk seems to be an invalid character in SMB. Everything was fine until the El Capitan update. It seems in this update something changed with the AFP/SMB handling on OSX. I had to disable SMB on my NAS (Synology) to force AFP and to have the proper names displayed.