I wouldn't be entirely surprised if something like this was intentional, or that they intentionally filtered the word "gender" and an unintentional side effect

I wouldn't be entirely surprised if something like this was intentional, or that they intentionally filtered the word "gender" and an unintentional side effect was the program crashing. You literally can't make any statements about gender, no matter how benign, without pissing at least a few of your users off.