Pipeline Limit Error, but Only Hit Half the Limit?

Finally QB Support got back to me about this.

The issue is that every time you copy an App in QuickBase it also copies all of the Pipeline Webhooks on the backend from the original app. There is no access to view these Pipeline Webhooks, so if you have to copy the app, then you have to get with QB Support and have them remove all the (as they referred to it 'ghost' webhooks) inactive Pipeline Webhooks on every table for you. Otherwise eventually you will run into the Only 90 Pipelines per table error.