I've just run the new sia-ui.
Clicked on load legacy wallet.
It asks for a password even though the old wallet wasn't encrypted.
I entered an empty password but no way.
Please help.
I would just redownload and start fresh with a new copy of the client. Wait for it to download the blocks before you try anything. (It took a really long time for mine to update fyi like 6-7 hours or something)
When you click wallet the first time it should show you the password. Just copy and paste that somewhere safe.
If you don't see anything on the screen where it says something like "here's your password" just double click to select the text, copy and paste it somewhere since sometimes there's a display error and it doesnt always show.
Then just load your legacy wallet again.
This is what I did and it worked for me (and I ran into the problem where I couldn't see the pass it generated for me too.. but I got around that by double clicking the text to select everything and then copy/pasting.
Goodluck
I started fresh.
It stopped downlaoding blocks at 16374, so I assume that's the last block (no way to check it since the explorer is down).
If I go to the wallet tab, there is no password.