If telemetry contains gaps or unexpected values, describe what you can actually see: the affected channel, approximate time or lap, and whether the problem occurs throughout the session or only in part of it.
Include your phone, Android version, app version and the source of the data where known. Say whether the app was visible, whether the screen changed state, and whether any equipment disconnected.
These details help distinguish a recording issue from a display or review issue without assuming a particular cause.