Inline Rename of MTP files Not Working

I'm using Opus v12.3 and having a problem with inline rename of files on an MTP connected device. If I try and rename a file by clicking on its filename in a lister, the filename change doesn't occur. I get the option to change the filename (i.e. the filename becomes editable), it's just that the change doesn't occur after pressing enter.

The rename dialog box on the other hand does work OK.

Is this by design or a possible bug?

It's a bug, thanks for reporting it! Will be fixed in the next update.