Queue Dynamic Agents lose order on fwconsole reload

We have a queue with static and dynamic agents.
Dynamic agents logging in with misc destination feature code to the specific queue, so if we check the queue order is:
Local/StaticAgent1@from-queue/n
Local/StaticAgent2@from-queue/n
Local/StaticAgent3@from-queue/n
Local/StaticAgent4@from-queue/n
Local/DynamicAgent1@from-queue/n
Local/DynamicAgent2@from-queue/n
Local/DynamicAgent3@from-queue/n

and it’s working correctly until we reload freepbx, dynamic agents are moving first in line and then static agents.

Local/DynamicAgent1@from-queue/n
Local/DynamicAgent2@from-queue/n
Local/DynamicAgent3@from-queue/n
Local/StaticAgent1@from-queue/n
Local/StaticAgent2@from-queue/n
Local/StaticAgent3@from-queue/n
Local/StaticAgent4@from-queue/n

is this a bug or it must work this way?