is this the same reason yours is dying? looks like Apple is killing the app for high cpu usage
Event: cpu usage
Action taken: Process killed
CPU: 48 seconds cpu time over 48 seconds (100% cpu average), exceeding limit of 80% cpu over 60 seconds
CPU limit: 48s
Limit duration: 60s
CPU used: 48s
CPU duration: 48s
Duration: 48.05s
Duration Sampled: 45.88s
Steps: 26
Hardware model: iPhone11,8
Active cpus: 6