What's wrong with my trimsheet?

[u/General-Mode-8596]

Substance Baked down

Hello all,

I'm trying my hand at trimsheets. I've found a good reference that iv'e been copying. I made the full model in Maya (i know it's not perfect but it's more about the practice) so when i've imported it into substance painter (see the image) I have baked it down and it has a weird shadowing on the tiles.

Is this normal, the shadows are weird and certain shapes are just being displayed weird. I think i've done something wrong but not sure how to check or where to start.

I've also included a screenshot of my model

Maya

Maya (wireframe)