I'm assuming this was a 5k on android? Let me know you can download the debug version on github and test it on a run.

GitHub

Release v1.2.5-debug - GPS Debug Build for Android Testing · RUNSTR-LLC/RUNSTR

Debug Build for GPS Issue Investigation This is a pre-release debug build for testing GPS tracking issues on Samsung, GrapheneOS, and other affecte...

Will pay 5k sats for the logs to understand what might be going wrong with the cardio tracker. DM's are open