Transaction Error: Bad Inputs on New Wallet

I messed up my title. Couldn't think of a better way to say it. Just got a new wallet today, added some tBTC on testnet using the Unisat Chrome extension. I sent a bit to different wallets, but now I'm getting this "bad-txns-inputs-missingorspent" error. Can’t send anything from one of the wallets I already sent tBTC to... I thought I had stuff in there.

That sounds frustrating. It's weird that it's showing a strange balance on the explorer too. Like, I added 5.8 tBTC, but it’s saying I received over 40 and sent almost 35. What's up with that? Feels like it's got to be a mistake somewhere.

From what I've seen, that error usually means you're trying to send a change from a UTXO that's already been spent. Might wanna check your transaction history. Could be that you need to clear your activity data in the wallet or restart your browser.

Yeah, I've run into that before... so annoying. If you want to see what’s going on, go to the explorer and search your address. You might find that you've sent small amounts a bunch of times and the change is being sent back to your original address. That's why it's counting as 'received' again.

Just FYI, OP's also posted about this issue on Unisat's GitHub. Still no reply from the devs. Sounds like they spent some tBTC using Electrum instead. @BootsManuva, maybe share a screenshot of your transaction inputs before signing? That might help everyone see what’s causing the mess.

Update: Still having issues... I thought I'd sorted it out, but it’s not working right. Wallets should be straightforward, right? So tired of these errors. Anyone else dealing with the same thing?