OBD bluetooth connection drops

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/report-a-bug/obd-bluetooth-connection-drops/
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I can successfully connect to my BT OBD device which then shows SoC in the ABRP screen (running iOS 15.2 and the latest version of ABRP). However, after a few minutes the connection drops. The device is still visible in BT settings in iOS though, and the LED's on the device keep blinking as they would do when all is working correctly. I can confirm the device itself is OK, as it works and keeps working correctly with EVNotify. When I close and restart the ABRP app, it then shows SoC correctly for a couple of minutes until the connection drops again.