Issue with Audio high-pitched

I recorded a video using the Blackmagic app on my iPhone with the audio set to dual mono, as I had connected two microphones. I’ve always used this setting without issues. However, this time, after about 2 minutes of recording, the audio started to become high-pitched and the quality changed. Can you help me fix this? Maybe there are some settings we need to adjust.

Dialogue ended up sounding like a chipmunk?
We've had a few instances with BMC, iPhone 15 Pro Max, Rode AI-Micro audio interface.
Only suggestion from BM was to turn off stabilization.