Lost gold, bank not accumulating

The money bug is back. Had 16k in gold, and suddenly it dropped to 3k. didn’t build anything other than some wooden walls. watched it, and when it was positive (Green) the bank didn’t increase. when it was negative (Red) it sure deducted it pretty quickly.

Check your Trading Post transfers.

no transfers active.

Can confirm that this happened to me on 1.0.6b. I can’t upload 2 saves, but it was bracketed by a raider attack. Is it possible that the attack got credit for wiping out my Vault?