Still there with the Compactlogix V19 & V20.
I just upgraded to V7.6.6 and problem is still there. Due to the large PLC tag count >25K tags per PLC , I have AutoBrowse tags disabled in the connections for each of 4 PLCs in the Gateway . This project is in development and the browse tags after a PLC edit causes issues.
After a new complex UDT tag is added in PLC, I refresh browse . Sometimes, not all, the complex UDT tag appears as a set of folders.
I just toggle between disable the PLC connection and enable , and tag appears OK.