I'd recommend you contact your local support team
I contacted support on this this morning. Still unknown fix, hoping to hear more back this afternoon.
I am getting the same behavior with my Database and the linked servers
Have you found a solution to this topic?
We dumped the idea of using TTL, found too many issues. Since the concept of using it, we found that many others decided against it also, so no big loss, especially since we never used it.