If you read my horror story (and how I fix it) after changing my Master Password for my Hive account (from splinterlands.com) (if not, pls read here @holmiumz/splinterlands-error-rpcerror-missing-required-posting-authority-missing-post-authority-username )
I am faced with another problem! this is now with peakmonsters.com where I cant login due to missing/no "authority". The error you are getting is "you need to import your account using your password or at least active key to do this request. Click "Add another account" button to proceed
So no matter how many times I login to import my all my keys and recreate account it won't work! It was so frustrating!
So how do I resolve it? All down to ONE important aspect - use your ACTIVE keys to login instead of Posting Keys!! If you realise, the login box actually give you options to login using owner, active, posting keys but all wont work unless you are using your Active key! I was earlier using my posting key and thus all didnt work out till I deleted account and recreate using Active key! Bingo!
Just sharing quick tips so that can help anyone who face same problems after changing their master password for splinterlands Hive account. Thanks!