From your debug, it looks like it's receiving the temperature and pressure calibrations (T1, P1, etc).
I've used the BMP280 and BME280 with the teensy, and am about to find a BMP390 to try.
I'm wondering if it's the...
Ran into similar problem again, and thought I'd leave a reference here in case this is helpful for someone searching about how to capture serial data in linux.
This works really well:...