Update - We are continuing to work on a fix for this issue.
Nov 21, 01:41 UTC

Identified - We are experiencing increased manifest computation times on subnet jtdsg due to the big state of this subnet. Big manifest computation times reduce the time available for nodes to catch up within one catch up interval. As an immediate fix a proposal was submitted to slow down the subnet to ensure that replicas can catch up again. We are working on a series of fixes to resolve the situation.

At this time, only subnet jtdsg is impacted. All other subnets are fully operational.

Proposal: https://dashboard.internetcomputer.org/proposal/29035

Additional information: https://internetcomputer.org/blog/recent-issues-on-subnet-jtdsg-and-upcoming-improvements
Nov 19, 20:29 UTC