User restrictions not working on first use

[Dtrotmw]

My system:
Core 2024.8.3
Supervisor 2024.08.0
Operating System 13.1
Frontend 20240809.0
Running in Oracle VirtualBox on a Windows 11 PC.

I've given a group of trusted colleagues access to my HA instance via the cloud/Nabu Casa. They share a login (user = RNLI) and browser_mod is set to hide the sidebar and make a dashboard called RNLI the default for user RNLI. All other controllable dashboards are set to be not visible to user RNLI.

When a new browser/device accesses my HA instance, after logging in successfully they are shown the default HA dashboard (the one with all the entities shown). ie the browser_mod controls don't work at first. If they close the browser & try again, most often they will get the desired experience (single dashboard, no sidebar).

If I restart VirtualBox after a crash most often they will be shown the HA default dashboard again until they go through the same process described above.

I have selected Auto-register in the Browser_mod control panel.

I don't get any error messages and I can't see anything relevant to browser_mod in home-assistant.log.

How can I get new browsers to be limited as setup in Browser_mod control panel on their first use?

By replacing the space in the checkboxes ([ ]) with an X below, I indicate that I:

• Understand that this is a channel for reporting bugs, not a support forum (https://community.home-assistant.io/).

• Have made sure I am using the latest version of the plugin.

• Have followed the troubleshooting steps of the "Common Problems" section of https://github.com/thomasloven/hass-config/wiki/Lovelace-Plugins

• Understand that leaving one or more boxes unticked or failure to follow the template above may increase the time required to handle my bug-report, or cause it to be closed without further action.