Nimble server crash with SRT protocol

My server just crashed, it look like a bug.
OS is Ubuntu 18.04., only SRT and SLDP are enabled . Does Ubuntu 18.04 need some package upgrade, I already saw somewhere problems with Ubuntu 18.04 and Nimble?
This is error log:

[2020-05-30 02:15:37 P1714-T3389] [SRT:RcvQ:worker] I: signal handler: Segmentation fault (11)
[2020-05-30 02:15:37 P1714-T3389] [SRT:RcvQ:worker] E: backtrace:
/usr/bin/nimble(_Z14signal_handleri+0x9e) [0x560b78d76e2e]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x12890) [0x7f456ac77890]
/usr/lib/x86_64-linux-gnu/libsrt-nimble.so.1(_ZN16FECFilterBuiltin16MarkCellReceivedEi+0xda) [0x7f455f77e5da]
/usr/lib/x86_64-linux-gnu/libsrt-nimble.so.1(_ZN16FECFilterBuiltin7receiveERK7CPacketRSt6vectorISt4pairIiiESaIS5_EE+0x2a6) [0x7f455f77f576]
/usr/lib/x86_64-linux-gnu/libsrt-nimble.so.1(_ZN12PacketFilter7receiveEP5CUnit5ref_tISt6vectorIS1_SaIS1_EEES2_IS3_ISt4pairIiiESaIS8_EEE+0x38) [0x7f455f78a798]
/usr/lib/x86_64-linux-gnu/libsrt-nimble.so.1(_ZN4CUDT11processDataEP5CUnit+0x2ec) [0x7f455f76f32c]
/usr/lib/x86_64-linux-gnu/libsrt-nimble.so.1(_ZN9CRcvQueue29worker_ProcessAddressedPacketEiP5CUnitPK8sockaddr+0x7b) [0x7f455f78f47b]
/usr/lib/x86_64-linux-gnu/libsrt-nimble.so.1(_ZN9CRcvQueue6workerEPv+0x250) [0x7f455f78f740]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x76db) [0x7f456ac6c6db]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x3f) [0x7f45697f688f]

Hi,
this article describing FEC https://blog.wmspanel.com/2020/04/srt-fec-forward-error-correction.html clearly states that FEC may be a root cause of any problems. Moreover it provides recommendation not to use it. From you stack trace it's clear you have a problem in FEC filter. Obey our recommendatioan about FEC usage and use it on your own risk not expecting help from us. Please read the article for details

Alex, thanks on answer!
I read that article but saw only bug related to : LARGE DROP detected! Resetting all groups. ....
So I guess there is only one bug and not mine :)
Cheers!