On my Windows 10 desktop, TC 14.0 appears to run fine, including Object Spy. However, we also use Windows 10 VMs and there, executing tests is so slow it is mostly unusable. I end up stopping execution or it has crashed a handful of times over the last few days. Trying to use Object Spy while in a "paused" state seems to make things even worse. It may take 10 minutes for the red outline highlighter to appear, if at all. Today, I finally paid attention to the error: "TestComplete has encountered an error in module unloaded aqDbgHelp.dll and needs to close.
Also, I reinstalled TC 14.0. When trying at first the uninstaller said a TC process was open. However, no such process existed (at least with TestComplete in the name). I restarted the VM and then was able to continue the reinstall. It was like a ghost process reference lingered. Anyway, the end result was no help.