Mac mini: Sequoia 15.7.3 local network permissions issue

If a simple reboot of your Mac doesn’t fix things, see if the problem still happens in safe mode.  Safe mode will often correct weird software behavior by forcing the OS to clear caches, do disk repair and other self-maintenance and housekeeping and temporarily disables third-party mods.

How to use safe mode on your Mac - Apple Support 

TIP - best to use a wired USB keyboard for this. If you have the Magic Keyboard, plug that into the Mac with its charging cable.

Does the problem go away in Safe mode? 

If so, this may indicate an OS software conflict caused by your apps.

You can exit safe mode by restarting your Mac normally, then reevaluate the problem.

If the problem goes away in safe mode but returns after restarting normally… then download and run the free version of EtreCheckPro EtreCheck Pro.

Then post your report here using these instructions: How to use the Add Text Feature When Post… - Apple Community

Have you updated your Better Display app?

I'd start there.

That's a good report, and to my eye there is nothing that pops out as being potentially problematic.

I suggest that you keep in touch with the Better Display developer and work with him to resolve this.

Meanwhile, you might try completely uninstalling that app, then downloading a fresh copy and reinstalling it.

Finally, you said that you had to toggle local network permissions for the app to get it to communicate. Which setting(s) is that, exactly, that you are toggling?

Well, obviously the developer is aware and it seems that they do have some more work to do.

Meanwhile, I'm sorry to say I'm out of ideas here, my friend.

I'll keep 🤞🏽 for anyone else to provide so good assistance.

Please keep us advised if you discover a fix.