One of my tag managers has simply disappeared from my web interface.

[David Smith]

My heavily-configured 2nd tag manager has disappeared from my web page configuration, but still working. Unfortunately, I can't change anything now. I hesitate to try and re-add the tag manager through accounts for fear of losing its whole configuration. I have an extensive network of these devices and this is a deal-killer - hopefully server-side people can get my tag manager access back!

Thx,
Dave