I’m not sure if it’s a bug or not, but when I’m setting structure as parameters in sequencer event all values are set to 0 by default. It would be really nice if they use default struct values 
Hi matmow,
Thanks for reporting this, I’ve entered UE-45430. You can track the report’s status as the issue is reviewed by our development staff. Please be aware that this issue may not be prioritized or fixed soon.