Today I saw this problem again. It looks like the first person waiting blocks the queue, after he hangs up, calls were routated again.
I further have tested this, bij disconnecting a call, then the second one waiting was routed.
It looks likes this happens when all agents are in a call, and there is a waiting queue.
/ there a three accounts logged in via hot desking and about zes accounts mentioned in the agentgroup/
Any suggestions ?