I discovered that some of my zaps are going into a sub-zap black hole. I didn’t have a fallback path, thinking I had covered all options, but apparently not. Or maybe it’s something else?
How best to debug this? The sub-zap run history shows only successes. Looking in the data in the main zap doesn’t show anything glaring.
I did add a fallback path to hopefully prevent getting stuck, but I need to figure out what bad data is getting passed in that shouldn’t be.
![](https://uploads-us-west-2.insided.com/zapier-ca/attachment/4c78e2cc-3408-4258-a536-e9a76476ed0a.png)