RetroArch UI not loading when remotely mounting ROMs

I have recently installed Lakka on a PC. It boots fine and I get the RetroArch UI to come up.

However, I followed these instructions to mount my ROMs from a NAS: http://www.lakka.tv/doc/Serving-ROMs-from-a-NAS/ and now I’m having issues with the UI loading.

Loading the command line from SSH, I can see that the mount is working properly and I can see the ROMs, but I’m seeing this on my screen:

Any suggestions on how to resolve this? If I disable the storage-roms-nas.mount service through systemctl and reboot, the UI does come back up, but I would really like to be able to use the remote mount.