[BUG] v8.1.5 Project isn't honouring default tag provider

I have a gateway which has multiple tag providers. If I change one of my project’s default tag provider to something else and save, the new one goes bold in the Tag Browser drop down to select tag providers, but referencing a tag without the new tag provider doesn’t work (Bad_NotFound). However referencing a tag from the old tag provider does work.

I haven’t been able to test if rebooting the gateway fixes it yet.

Also, both of my tag providers are remote tag providers as my gateway is frontend/backend split into 2 gateways.