We've had a number of drawings rejected from a spec checker for elements on the default level. A little bit of investigating and it seems these are being added to sheet models by AECOsim. The elements are not visible a are removed when the file is compressed, only to reappear when the file is reopened. The annoying part is that each time the file is opened, the elements are added again.
Anyone else come across this?
See level properties below: