I am seeing this as well on my BR1 Pro 5G after upgrading to the special firmware and the new cellular firmware released today. Verizon SIM no longer achieves LTE-A and I’ve not seen it connect to C-Band, either, despite knowing it is available where the device is currently located.
There is a new bug discovered for the bands display in the firmware 8.2.1 that sometime the bands info is not displayed even the cellular module is connected in LTE-A/Carrier aggregation and this is the reason it cause confusion that the bug reappears after that.
Engineering team is working on the bug fix and we will repost the firmware as soon as the firmware is passing the QA test process. Very sorry for the inconvenience caused.