Galera cluster slave abort with Assertion `mode_ == m_local || transaction_.is_streaming()' failed despite primary added for all tables

Hi, Despite have add Primary Key to all tables, we still encounter the `Assertion `mode_ == m_local || transaction_.is_streaming()' failed.` Galera failure.
We operate 3 Mariadb Server 10.4.20 nodes (galera-4-26.4.6-1.el8.x86_64). Our aplications reach cluster using maxscale 2.2.9 configured with a read write splite router.

It seems to be related to a specfic request, ans some times both slaves fails and produce a core:

mysqld: 

/home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.4.20/wsrep-lib/include/wsrep/client_state.hpp:668: int wsrep::client_state::bf_abort(wsrep::seqno): Assertion `mode_ == m_local || transaction_.is_streaming()' failed.

210802 11:55:00 [ERROR] mysqld got signal 6 ;

Please found in attachment:

• the Master general query log rd-devops-sql2.log
• A Slave core
• A Slave mysql error log