worked between my accounts. confusing. if its not to much can you explain.
This is the error you are facing:
record.slate.size() <= BTS_BLOCKCHAIN_MAX_SLATE_SIZE:
It means that you have elected more than 110 delegates as favorits .. it seems there is a bug in the client that results in a construction of a transaction that has too many delegates approved in the transaction .. hence the transaction fails to validate due to having too many delegates approved ..
alternatively you can try 'vote_random' too .. the wallet will choose a random subset of your chosen delegates!