Wonder if anyone has experienced this and has a solution, we are showing some AppStacks with attachments but no actual machines listed when you click on the link or look under the attachments tab, these are AppStacks we want to delete but because they are showing attachments we are prevented from deleting them. We are using AppVolumes 2.18.
Could it be that you attached it manually to some sort of packaging machine? Maybe the machines are not being cleaned up correctly and the appstacks are still attached to a machine that you cannot see in the log file?
Nomally when you start up a machine it will check to see if an appstack is still attached so you could try and start up all machines that attach appstacks, when started up they will disconnected the appstacks.