When dialing with both ExHook and ExProto, ExHook refuses to authorize messages from ExProto, but it can process them in general. Here is the error log:

[error] clientid: g1h3D2VtcXhAMTcyLjE4LjAuMgAADdQAAAAAAAAABA==, msg: failed_to_execute, peername: 172.18.0.1:54662, reason: function_clause, stacktrace: [{emqx_exhook_handler,clientinfo,[#{peername => {{172,18,0,1},54662},protocol => 'MQTT',password => <<>>,username => <<"g1h3D2VtcXhAMTcyLjE4LjAuMgAADdQAAAAAAAAABA==">>,listener => 'exproto:tcp:default',clientid => <<"g1h3D2VtcXhAMTcyLjE4LjAuMgAADdQAAAAAAAAABA==">>,peerhost => {172,18,0,1},zone => default,enable_authn => true,is_superuser => false,is_bridge => false,mountpoint => <<>>,sockport => 20041,auth_expire_at => undefined}],[{file,"emqx_exhook_handler.erl"},{line,318}]},{emqx_exhook_handler,on_client_authorize,4,[{file,"emqx_exhook_handler.erl"},{line,144}]},{emqx_hooks,safe_execute,2,[{file,"emqx_hooks.erl"},{line,205}]},{emqx_hooks,do_run_fold,3,[{file,"emqx_hooks.erl"},{line,185}]},{emqx_access_control,do_authorize,3,[{file,"emqx_access_control.erl"},{line,224}]},{emqx_access_control,check_authorization_cache,3,[{file,"emqx_access_control.erl"},{line,139}]},{emqx_access_control,authorize,3,[{file,"emqx_access_control.erl"},{line,106}]},{emqx_exproto_channel,handle_call,3,[{file,"emqx_exproto_channel.erl"},{line,435}]},{emqx_gateway_conn,handle_call,3,[{file,"emqx_gateway_conn.erl"},{line,646}]},{emqx_gateway_conn,handle_msg,2,[{file,"emqx_gateway_conn.erl"},{line,467}]},{emqx_gateway_conn,process_msg,2,[{file,"emqx_gateway_conn.erl"},{line,427}]},{emqx_gateway_conn,handle_recv,3,[{file,"emqx_gateway_conn.erl"},{line,390}]},{proc_lib,wake_up,3,[{file,"proc_lib.erl"},{line,251}]}], exception: error, failed_call: {emqx_exhook_handler,on_client_authorize,[#{peername => {{172,18,0,1},54662},protocol => 'MQTT',password => <<>>,username => <<"g1h3D2VtcXhAMTcyLjE4LjAuMgAADdQAAAAAAAAABA==">>,listener => 'exproto:tcp:default',clientid => <<"g1h3D2VtcXhAMTcyLjE4LjAuMgAADdQAAAAAAAAABA==">>,peerhost => {172,18,0,1},zone => default,enable_authn => true,is_superuser => false,is_bridge => false,mountpoint => <<>>,sockport => 20041,auth_expire_at => undefined},#{retain => false,action_type => publish,qos => 0},<<"test">>,#{result => allow,from => default}]}

Messages from ExProto are successfully transmitted to the broker, and ExHook successfully authorizes MQTT clients, but they don't work together (in case of authorization, because ExHook processes 'message.publish' hooked messages from ExProto).

I would be grateful for any advice!