Veneer wrinkled

Reveneered an old harp dresser awhile ago,heat glued white oak veneer,my work space is a unheated old hay barn,looked good after I brought it Attachment 490259Attachment 490260Attachment 490261 n the house things wrinkled, winter and summer here are cold and humid and hot and humid,if had to venture a guess ...I never did veneer before...I am thinking that the veneer being applied with an iron,when done was of course low in moisture,the dresser being in a barn for some time may have high in moisture content and when brought into the controlled environment of the house it dried and shrank while the veneer probably picked up moisture and swelled and since veneer is thin bent and wrinkled.is this a possibility or am” I barking up the wrong tree?”

I would be thinking the glue failed...

I think you are right about the moisture difference being at least partly responsible. My guess is that the substrate is solid wood. If so then it could be that the substrate shrunk which would then show the wrinkles you see.

If it was the veneer shrinking and expanding you wouldn't see the wrinkles like that because of the grain direction of the veneer.

If you can heat the glue and reposition the veneer in this new environment that might work for you, otherwise, I think you will need to remove this and apply new.