TPU underextruding

My V3 SE has decided that it wants to underextrude TPU. Totally fine with PLA/PETG can’t see what setting could have gone wrong. It isn’t really a problem as my Ender 5 plus quite happily printed what I needed but it was a different roll of filament, same make on both machines but on the SE it is fairly end of roll, left it to dry for a few hours made no difference.

Limit the flow rate to 4mm³/s and see if it prints better.

The default setting on the SE and KE is 3.5mm³/s but on the 5 plus it is 10mm³/s. Might try them all at 10mm³/s not noticed they were different before.