I attached the crash log (I guess, since new one comes to c:\Program Files\BaseX each time the program craches) using the newer binary.
Thanks. Unfortunately this is a JVM bug that we cannot fix; it may be related to [1]. It could help to upgrade to the latest JRE version. On the other hand, your version is fairly new, and it doesn’t seem as if the problem has been fully fixed by the developers. Changing the Look and Feel seems to be another alternative (via the BaseX GUI preference dialog), but not a very aesthetically pleasing one.