
Please look at it asap as this issue causes heavy frame drops, and the new robot logic was one of the biggest features my friends and I were looking for.
I attached the save that should still contain the ring before dismissing it by deconstructing the roboport.
(This was happening in an earlier version as well, just letting you know)
This is also quite similar to 117769 (but there wasn't any power outage in my case to my knowledge)
Cheers,
Jouki