bufferevent_free_checked about newnode HOT 2 CLOSED

1.5.1 arm64-v8a
Fatal signal from native code: 6 (Aborted)
********** Crash dump: **********
pid: 0, tid: 0
Stack frame #00 pc 0006b558 libc.so (tgkill)
Stack frame #01 pc 000689dc libc.so (pthread_kill)
Stack frame #02 pc 00023f28 libc.so (raise)
Stack frame #03 pc 0001c9ac libc.so (abort)
Stack frame #04 pc 00020f34 libc.so (__libc_fatal)
Stack frame #05 pc 0001cdbc libc.so (__assert2)
Stack frame #06 pc 0003b95c libnewnode.v1.5.1.so (bufferevent_free_checked)
Stack frame #07 pc 0004a97c libnewnode.v1.5.1.so (ubev_bev_close)
Stack frame #08 pc 0004b1e8 libnewnode.v1.5.1.so (ubev_write_cb)
Stack frame #09 pc 00061e4c libnewnode.v1.5.1.so (bufferevent_writecb)
Stack frame #10 pc 0006a2b0 libnewnode.v1.5.1.so (event_process_active_single_queue)
Stack frame #11 pc 00065f00 libnewnode.v1.5.1.so (event_base_loop)
Stack frame #12 pc 0003c8a0 libnewnode.v1.5.1.so (network_loop)
Stack frame #13 pc 0002ba2c libnewnode.v1.5.1.so (client_run)
Stack frame #14 pc 0002ba80 libnewnode.v1.5.1.so (client_thread)
Stack frame #15 pc 000681e4 libc.so (__pthread_start(void*))
Stack frame #16 pc 0001dbc0 libc.so (__start_thread)

network.c:135: void bufferevent_free_checked(bufferevent *): assertion "!bufferevent_get_enabled(bev)" failed