Hardwood Floor Polyurethane Peeling

Hi we just had our engineered wood floor installed urban floor by a professional installer just only a month and a half ago.
Hardwood floor polyurethane peeling. Solid hardwood engineered and laminate flooring brand new polyurethane coat peeling hello i m hoping to get some advice on what to do about my floors. We are now experiencing the same problem of top finish peeling. I am supposed to close on a house this week and i have a question regarding the hardwood floors. A contaminated floor won t hold finish.
I have refinished multiple dressers tables chairs beds etc. This often leads to some head scratching trying to figure out how it happened. This is what i did. It doesn t seem to make sense.
For example it s not uncommon for old floors to start peeling as the old polyurethane topcoat starts to deteriorate. At many of the board seams in the kitchen the polyurethane is peeling up and bubbling. Pulled carpet removed staples countersink any nail heads belt sanded with 36g sanded with 60g sanded with 80g sanded with 120g w each grit we went over the floor once but overlapped boards vacuumed hand wiped with cloth again with tack cloth applied 1 layer of stain let dry for 24 hrs wiped the floors used a tack cloth applied 1st coat of poly. It is 50 living room 25 kitchen and 25 dining room.
They were recoated with high gloss oil base polyurethane 2 coats. Dirt or chemicals on top of a floor or embedded in its finish can cause subsequent coats of finish to flake or peel off. Sometimes the coats will lay down flat and smooth and look good after the floor finisher has left only to receive a call later that the finish is separating from the floor. The floor has a pre attached foam pad to the board.
The manufacturer says it is caused by moisture underneath the planks. Continue reading finish didn t chemically bond and is lifting off. This laminate floor was purchased from lumber liquidators their good stuuf. Ultimately you will most likely have to refinish the floor if the polyurethane won t stop peeling.
Nobody likes to see polyurethane peel especially just after refinishing the floor. In the dining rooms and entry way there are rugs on the hardwood floors with no pads and apparently water must have been spilled in a couple of areas and has seeped through to the floor because the polyurethane is peeling off in long strips. I recently replaced capret with laminate and linolium with the same laminate floor on top of it. Peeling finish can be a frustrating issue for floor finishers.
Less so in the lr dr and foyer but still peeling in. Before you act you need to identify the issues. I used an oil based stain and followed that with an oil based poly. I am having issues with polyurethane peeling off my hardwood floors.
So the idea of refinishing a hardwood floor did not scare me. This floor covers one large area 650 sq ft.