Hi,
I've some trouble with the Arduino IDE in windows 10. (the problem is existing in several IDE versions) everytime after a update i hope it's fixed 
after using the open or save dialog (CRTL-O / CRTL-S) and cancelling it, the IDE freezes.
or closing a project with CRTL-W and than hitting cancel the IDE freezes and can only be closed by ending the task. (very annoying when you haven't saved the probject 
)
I'm running Windows 10 (updated to the last version) with IDE v 1.8.12 >> i've the same problem at both of my pc's.
the version of java i'm using
java version "1.8.0_231"
Java(TM) SE Runtime Environment (build 1.8.0_231-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.231-b11, mixed mode)
is this a known problem, and is there a solution?
I hope someone can help.
Reinald.