Since both Robert and Dave had two separate, but related posts, I decided to combine them here.
Typing h: followed by a vowel in the Lemma section of a segment node in a Syntax search causes the program to crash. The problem seems to be related to the fact that in Hebrew words don't start with vowels but consonants. So trying to start any search with a vowel (h:a, h:e, h:o, h:i, and h:u) causes the program to crash. However, trying to find words that start with א and ע is problematic. ' represents א, but typing h:'l doesn't find אל, or at least not "el". Using the keyboard selector to change to hebrew allows finding words like אל just fine.