Here is the relevant bit. This is going from queue 7000 which has dynamic agents but are busy on another call. The wait time is set to 5 minutes but immediately drops them into the failover destination which is 500.
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:30] QueueLog("SIP/SBC1_Out-00000021", "7000,1635174233.998,NONE,DID,651XXXNNNN") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:31] Set("SIP/SBC1_Out-00000021", "QAANNOUNCE=") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:32] Set("SIP/SBC1_Out-00000021", "VQ_AANNOUNCE=") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:33] Set("SIP/SBC1_Out-00000021", "QMOH=default") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:34] Set("SIP/SBC1_Out-00000021", "VQ_MOH=") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:35] ExecIf("SIP/SBC1_Out-00000021", "1?Set(__MOHCLASS=default)") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:36] ExecIf("SIP/SBC1_Out-00000021", "1?Set(CHANNEL(musicclass)=default)") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:37] Set("SIP/SBC1_Out-00000021", "QMAXWAIT=300") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:38] Set("SIP/SBC1_Out-00000021", "VQ_MAXWAIT=") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:39] Set("SIP/SBC1_Out-00000021", "QUEUENUM=7000") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:40] Set("SIP/SBC1_Out-00000021", "QUEUEJOINTIME=1635174273") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:41] Set("SIP/SBC1_Out-00000021", "QMIN_PENALTY=") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:42] Set("SIP/SBC1_Out-00000021", "VQ_MIN_PENALTY=") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:43] ExecIf("SIP/SBC1_Out-00000021", "0?Set(QUEUE_MIN_PENALTY=)") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:44] Set("SIP/SBC1_Out-00000021", "QMAX_PENALTY=") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:45] Set("SIP/SBC1_Out-00000021", "VQ_MAX_PENALTY=") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:46] ExecIf("SIP/SBC1_Out-00000021", "0?Set(QUEUE_MAX_PENALTY=)") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:47] Set("SIP/SBC1_Out-00000021", "_CALLER_DEST=") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:48] Set("SIP/SBC1_Out-00000021", "VQ_CDEST=") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:49] Set("SIP/SBC1_Out-00000021", "_AGENT_DEST=") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:50] Set("SIP/SBC1_Out-00000021", "VQ_ADEST=") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] pbx.c: Executing [7000@ext-queues:51] Queue("SIP/SBC1_Out-00000021", "7000,t,,,300,,,,0,") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] res_musiconhold.c: Started music on hold, class 'default', on channel 'SIP/SBC1_Out-00000021'
[2021-10-25 10:04:33] VERBOSE[19679][C-00000016] pbx.c: Executing [500@from-queue:1] Set("Local/500@from-queue-00000033;2", "QAGENT=500") in new stack
[2021-10-25 10:04:33] VERBOSE[19679][C-00000016] pbx.c: Executing [500@from-queue:2] Set("Local/500@from-queue-00000033;2", "__FROMQ=true") in new stack
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] app_queue.c: Called Local/500@from-queue/n
[2021-10-25 10:04:33] VERBOSE[19587][C-00000016] app_queue.c: -- LazyMembers debugging - Numbusies: 0, Nummems: 1
[2021-10-25 10:04:33] VERBOSE[19679][C-00000016] pbx.c: Executing [500@from-queue:3] GotoIf("Local/500@from-queue-00000033;2", "0?hangup") in new stack
[2021-10-25 10:04:33] VERBOSE[19679][C-00000016] pbx.c: Executing [500@from-queue:4] GotoIf("Local/500@from-queue-00000033;2", "1?7000,1:hangup") in new stack
[2021-10-25 10:04:33] VERBOSE[19679][C-00000016] pbx_builtins.c: Goto (from-queue,7000,1)
[2021-10-25 10:04:33] VERBOSE[19679][C-00000016] pbx.c: Executing [7000@from-queue:1] Goto("Local/500@from-queue-00000033;2", "from-internal,500,1") in new stack
[2021-10-25 10:04:33] VERBOSE[19679][C-00000016] pbx_builtins.c: Goto (from-internal,500,1)
[2021-10-25 10:04:33] VERBOSE[19679][C-00000016] pbx.c: Executing [500@from-internal:1] GotoIf("Local/500@from-queue-00000033;2", "1?ext-local,500,1:followme-check,500,1") in new stack