[erlang-questions] gen_statem badrecord,trans_opts

[getonga]

my own gen_statem module crash with this error msg:```
Context:    child_terminated
Reason:     {{badrecord,trans_opts},[{gen_statem,loop_event_actions_list,10,[{file,"gen_statem.erl"},{line,1210}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,247}]}]}

```
I recheck my code many times, and not found any error in my return state. And the module runs for a long time, a week or some more, and this error happens for only two times.
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