[Baertram]

Those RegisterForUpdate timers might be okay to update a counter showing on screen but they should not be used to run timers in general, where other ways are better. e.g. events fire or CALLBACK_MANAGER is available to register a callback function to run, or you can hok into Zos code to run your code befre/after it.

For example if you only want to react on real changes try my example code and just add your on screen information into that.
Instead of the

if currentBounty  >= x then
else
end

add a

d("Current bounty: " ..tostring(currentBounty))

and you should see the actual bounty in gold in a chat debug message.
Hope that works, have not tested it so far.