The jedit client & menu are being redrawn offset within the original client area. The search window is also being replicated. I have attached a screenshot to explain.
Jedit 5.2.0
Windows 10 Pro
Java 8 update 131
I suspect it is a java problem, because ProjectLibre (also based on Java) is having the same problem.
jEdit 5.2 is really old. It won't even download plugins anymore.
I recommend you upgrade to jEdit 5.4, update all your plugins, reproduce and attach an activity log if you still have the problem.
Thanks for the suggestion Alan. Updating to 5.4 fixed Jedit.