Here is my flow:
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They are dashboard buttons that send commands to remote devices.
I only checked on upgrading nodes after the dashboard stopped working.
Loading in incognito mode results in the same blank page.
Checking the developer console there are 2 errors and 1 warning I don't know what else I should be looking for there.
It doesn't matter what device I try to connect with none of them will render the UI. I can reach node red just fine.