I use exodus wallet and track the balance in Coinigy. Last week I sent some BTC from that wallet and the next day on Coinigy it showed it as empty. It was in the tens of thousands of dollars missing. I very nearly threw up.
As it turns out, Exodus created a new address and put the remaining balance there at the time I sent the smaller amount out - Coinigy didn't know that, of course.
I have never felt so anxious in my life.
So it put the unspent amount in a change address, but then in the main display it said that the wallet was empty?
Wow, that's nuts.
Not exactly - the key was that I was monitoring the wallet from Coinigy - so later Exodus showed the full balance - but since it resided in a different address Coinigy just saw a zero balance in the original address.
Okay, that makes more sense. Your Coinigy was only monitoring the original address, and wasn't aware of where the leftover change was going. But your Exodus wallet had access to both the original address and the change address, so it knew.
I guess that's one of the disadvantages of a watch wallet---you need to make sure it watches ALL your addresses, including the ones you've never used before.
Sorry I didn't pick up on that in your first comment.
You got it! I nearly had a heart attack. And yes - major limitation of a watch wallet. It's like I say, the best thing about cryptocurrency is the decentralization and the worst thing about cryptocurrency is the decentralization.