[BUG] Unable to launch Room Setup

[Dan-Barten]

Describe the bug

When launching SteamVR, I receive a prompt to run room setup. Room setup then appears to auto-launch in a window which immediately crashes. I then can't get it to open in any other way. Attempting to launch it from the SteamVR dock produces no noticeable results, attempting to launch it through the regular Steam window yields this:

Running the executable outside of steam produces these results ( from terminal):

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Set current directory to /home/decker/.local/share/Steam/steamapps/common/SteamVR/tools/steamvr_room_setup/linux64
Found path: /home/decker/.local/share/Steam/steamapps/common/SteamVR/tools/steamvr_room_setup/linux64/steamvr_room_setup
Mono path[0] = '/home/decker/.local/share/Steam/steamapps/common/SteamVR/tools/steamvr_room_setup/linux64/steamvr_room_setup_Data/Managed'
Mono path[1] = '/home/decker/.local/share/Steam/steamapps/common/SteamVR/tools/steamvr_room_setup/linux64/steamvr_room_setup_Data/Mono'
Mono config path = '/home/decker/.local/share/Steam/steamapps/common/SteamVR/tools/steamvr_room_setup/linux64/steamvr_room_setup_Data/Mono/etc'
Preloaded 'libopenvr_api.so'
Unable to preload the following plugins:
ScreenSelector.so
Aborted (core dumped)

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This is when run from the beta release, it seemed to preload ScreenSelector.so fine when using Stable for both SteamVR and Steam but crashed similarly each time.

To Reproduce
Steps to reproduce the behavior:

1. Launch Steam VR from Steam
2. (Optionally) Attempt to launch it again.
   Expected behavior
   Room setup launches as normal.

System Information (please complete the following information):
Please use the latest Steam beta client and SteamVR beta for your bug reports!

• Steam client version (build number or date): December 20th Beta (Also occurs in latest stable release)

• SteamVR version: beta 2.9.4 (same behavior in 2.8.8

• Distribution (e.g. Ubuntu): Arch Linux

• Steam runtime diagnostics:"LD_* scout runtime" information:
  Steam Runtime Diagnostics.txt

• Steam and SteamVR logs:
  steam-logs.tar.gz

• Minidumps: [run the following command: tar -zcvf ~/Desktop/steam-minidumps.tar.gz /tmp/dumps]
  steam-minidumps.tar.gz

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
Attempted workarounds mentioned in #694 without success.