Hi Nimesh,
it's very hard to say what the sequence of events are because a. it's periodic, and b. the stack trace doesn't link to any part of my app's code. It seems to be caused by tapping a marker on the map, which shows a callout. I'm afraid I cannot supply a sample app due to confidentiality, but given the infrequent nature of the bug that might not prove all that helpful anyway. I was sort of hoping that you could let me know what is occurring at line 213 of AGSMarkerSymbol so I can figure out whether it is my usage of the SDK that is at fault.
Cheers