I have the same issue.
I've had 3.8.5 installed for weeks, and every time I run PatchMyPC it wants to update it. Today I completely uninstalled TeraCopy and rebooted. Running PatchMyPC then shows nothing out of date. Then I install the TeraCopy 3.8.5 that PatchMyPC downloaded earlier, and when I run PatchMyPC again it says that TeraCopy need to be updated.
I've had 3.8.5 installed for weeks, and every time I run PatchMyPC it wants to update it. Today I completely uninstalled TeraCopy and rebooted. Running PatchMyPC then shows nothing out of date. Then I install the TeraCopy 3.8.5 that PatchMyPC downloaded earlier, and when I run PatchMyPC again it says that TeraCopy need to be updated.