There are a number of debug tools you can use to help you understand what's going on.
Here are some:
A usefull graphical way to see all tags, relationships and payloads
spits out console data showing GA activity, payloads and any errors
Super quick way to check if intended GA events are firing on page without activating dev tools.
Can record activity over journey
Has a usefull feature to check if GA has been accepting the tags also
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