"CTRL + right key" sometimes does not work in build 659

[Mago]

I use Freecommander XE x64 Build 659.

Action: pressing "CTRL + right key" on a folder in the left pane -> Result: the folder is opened the right pane
This works OK.

Action: pressing "CTRL + right key" on a file in the left pane -> Result: the current folder of the file is opened in the right pane
This sometimes doesn't work.
I have to restart Freecommander to resolve the problem.
I didn't have this problem in Freecommander XE Build 650.

[horst.epp]

Not confirmed
Works always for me under Windows 7 Ultimate x64.