Overall very satisfied Alfred user here. I just got a 2015 Macbook Pro and have encountered a slightly annoying bug on Alfred.
What you were doing when the issue happened: Unable to use the "Spelling" Accessory. When type into Alfred, "define" or "spell" the app crashes when I type the second or third letter of the query. Other functions (calculator, custom searches) work fine
Whether you were able to replicate it a second time by performing the same action: Happens consistently every time. One variation, though: sometimes the app crashes after typing one letter and sometimes after two. For example, I was able to type "define ba" before it crashed but it crashed immediately typing "define a."
Include any screenshots that might help us: attached
Include the Alfred version & build number you are using: Version 1.2 (220)
Include your OS X version: Sierra 10.12.1
Thanks in advance for looking into this!