Newly reblued VH light dusting of rust

[King Cobb]

Opened my safe up to put something in it tonight and noticed rust on the reblued barrels of my VH.

The barrels were rust blued about 2 weeks ago. I wiped off the rust and sprayed the barrels with oil and wiped them down good and put it back in the safe.

Pulled out my other 3 parkers, 1 superposed, colt AR, and all 8 of my colt pistols and revolvers and didn't find even a hint of rust.

Checked my moisture absorbing can and it was good.

First time I have ever had a rust problem in the safe. None of the rest of the VH had any rust on it, just the new blued barrels. It was just the exposed metal as well, flats and under the wood were clean.