Global variable not updating

I’m testing the global variables for fob entry system integration.

However, although NCS successfully calls the JSON endpoint, it never seems to update the value. I have it set to refresh every 2 seconds.

Only way it will update it by going back into Settings -> Global Variables.

Also, there’s a strange error on that screen “Error retrieving value: System.InvalidOperationException: RuleActionManager has not been initialized for this App Domain!”

Any ideas?

Searching in this forum gives RuleActionManager has not been initialized
a bug in 1.6.1