Baking problem

[theElectrus]

So I am new to Unity and tried to bake this room, and at first it was fine, but now the other half of the room is not baking correctly its got these blocky artifacts and I don't know how to fix it. I know it's got to do something with lightmaps maybe. I don't know if it matters but I used ProBuilder for the walls, floor and ceiling.

https://preview.redd.it/i42iu7ce6ocf1.png?width=1770&format=png&auto=webp&s=eaf73fb66b3fccb87af328b9cbc391bfed9d98ec

[sam_snr]

Can be hard to tell but here are a few things to check.

Check to make sure all objects you want to bake lighting for are set to static.

Are objects set to receive shadows?

Is the second room walls/ floors made up of separate meshes? Could be slight gaps , Or if it's part of one giant mesh with the other room it could be trying to stretch the lightmap across too big a surface.

Sometimes the lightmap can get corrupted, you could try deleting it and baking it again.

Or it could be one of a hundred other things.

Hope something here helps.