We have this issue going randomly on two of our workstations. Inspector turns inactive and cannot be turned to active state in any way. It returns to normal after closing FileMaker Pro Advanced and starting it again. When the issue is present the inspector flashes as active when an element is selected but turns inactive immediately.
We have not been able to reproduce the issue and it seems to start randomly
See screenshot attached.
-FileMaker Pro 16 Advanced (126.96.36.1992 x64)
-Windows 10 Pro (1703. build: 15063.674)
-Active plug-ins: 360Works Email (3.05), 360Works ScriptMaster (4.42), BaseElements (3.0), Self made ScriptMaster based plug-in, Troi Serial Plug-In (4.0).