Fatal error on MacOS 12.2 beta xCode 13.2.1

I keep getting this crash following sendBody with Data. The first sendBody always works; but subsequent calls result in this crash
<img width="1033" alt="Crash on Monterey with xCode 13 2 1" src="https://user-images.githubusercontent.com/2805289/148365229-620acc94-c63e-4455-8767-fa4eeca510dc.png">
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