Update: Feather Wallet 2.6.7 Released. Fixes issue
Solved the crisis

Update from previous article:
You have to update Feather wallet, it fixes a previous minor error with sending Monero. This new version is 2.6.7, and I confirmed it works. Your funds are safe. Update right in the wallet. Spread the word.
Original article 1 day prior:
Feather wallet has an issue.
- Version 2.6.5 may potentially get a failed transaction on sending funds.
- Version 2.6.6 has issues with starting up on Linux.
- Developer has the fix, it’s being built, he’s getting a couple hours of sleep.
- No need to panic, it’s a minor issue that will be resolved shortly.
- I do not speak for the developer, I am just spreading awareness.