Player Version
1.8-R7-240
Issue
Xibo Player launches but will not render with “GDBus Error:Org.freedesktop.portal.Error.NotAllowed: This call is not available inside the sandbox” error messages.
See this issue that has not been addressed by Xibo:
Error “Help: GDBus.Error This call is not available inside the sandbox - snapcraft - snapcraft.io” on Xibo Player (ubuntu) webpage Widget - Get Help / Xibo Player for Linux - Xibo Community