Although I may not help much, at least I can try to make you feel better by letting you know that I too have the same problem with my stingerbee male, he locked 2 months ago and afterwards he just was not interested, I put in him today after trying 2-3 things and he seems to be more receptive.
Crazy balls...
I hope you can produce some nice BELs, I am trying to do the same but with a Butter Lesser to Lesser
Best of luck!