After upgrading to ARD 2.9 I noticed flows are intermittently opening as "READ-ONLY". I verified that the flow is not locked in TDM repository. When I have opened the flow from a main flow, I did not receive a message saying it was locked by another user. However, flow still appears as "READ-ONLY". This does not happen on every flow. It appears to be random, or at least, I have not been able to determine a pattern.