Can you really withdraw bitcoin to the external bitcoin address from waves platform that you have tried just today?
I tried it yesterday and up to now, I can't. The pop up keeps disappearing every time I click "WITHDRAW" button.
Tried SEND but got error too:
Account number must be a sequences 35 alphanumeric characters with no spaces. optionally starting with 1W
I added 1W prefix to my recipient btc address but nothing works.
Hello!
This is a know bug with Google Chrome. Please use an online version -
https://waveswallet.io with firefox or google chrome (try to reload your wallet).
And please use only WITHDRAW button for external Bitcoin network

Same result. Nothing happens still.
What is this attachment for when sending btc to external address, can i leave it blank?