Been having this issue for months, a few specific files (design models) constantly keep getting locked out even when nobody is working in those files directly. When I click on the write-lock check mark and hit OK to release it....nothing happens and the check mark remains. We constantly have to wait until the write lock gets magically released in which we can actually make modifications to that design model.
This has been a big issue and hoping to finally resolve it.
Using AECOsim SS6 V8i