Skeleton skewed and deformed after import into UE 5.3

Hi everyone!

We have got a weird issue - once we import rigged and animated characters in GLB format into UE 5.3 its bones get very much skewed in deformed. No such an issue in 5.5, there works like charms. But as we have our project in 5.3, we’ve got to get it fixed in 5.3 … Any assistance appreciated!

Cheers,
Volo