Layer adhesion issue after ironing (TPU NInjatek 95A

Ironing on top layer, Very next layer is not bonding with the ironed layer.
Filament: TPU 95A Ninjatek Black
Flow ratio constant 1.07.
temp 240. Speed is standard settings
Nozzle .4 stainless.
I print the exact same file on x1c and have no issues. same settings. Could this be the wait for filament to cool setting?
The entire print is literally flawless all 250 or so layer for exception of this single layer about a quarter way through the print.
Thoughts, Comments Concerns?