1. I'll fix this crash, hopefully in time for the next release.
2. This seems to be a bug. I kinda looks like it has moved the space from the right of the ب to the left of it. I'll fix it as soon as I can.
3. I'm honestly not sure what this means. Is there any way to explain it that I could understand if I know no arabic? When I copy/paste الله into the search for Van Dyke, it gets about 2142 results.
I will try and explain number 3 a little more clearly:
In Hebrew it would be similar to trying to search for אֱלֹהִים by using only the consonantal text i.e. אלהים and having those searches fail because I did not enter the alif with the pointings i.e. אֱ; The Arabic searches are treating this as if it were a completely different letter. I can highlight the word الله in the text and paste it into the search and then it returns ONLY those instances that have those same marking, but I have no way of entering the Alif with the markings i.e. the hamza wasl from the keyboard so any word that has this must be located first and then the text selected and copied. Additionally, when الله has different markings on the alif then those examples are not found at all. Also when typing the consonantal text of الله into the search field, the popup box with suggestions never includes الله as an option.
If you look at this example of Allah from the Quranic text, you will see the marking above the Alif that kind of looks like a tadpole, it is the alif with this marking that cannot be entered from the keyboard (this is the hamza wasl).
You can see form above used in the first verse (Sura 1:1), and the consonantal form entered in the search box; when the search is executed, there are no entries found.
If I copy and past the text for الله that is found in Sura 1:1 then the entries displayed here are not found because the markings on the alif are the same. I found these by searching for الله enclosed in quotes i.e. "الله"; both this example and the example in Sura 1:1 are the same lexeme but there is no way to do a lexeme search that finds both examples.