Sealing perimeter insulation

Hello dear experts,

I live in a new building, completed about a year ago, timber frame construction.
I have had a mold smell in the living room for two weeks (which gets worse when it rains), so the developer and I now have to start investigating the causes.
What worries me a bit is the sealing of the perimeter insulation (or base insulation - I am not quite sure about the definition). I don't know if everything has been done correctly or if moisture can rise into the walls/under the screed due to missing sealing.

Can you look at the photos and tell me if this has been done correctly?

On the XPS boards there is a thin layer of sealing slurry (?) and on top of that a dimpled membrane (which is not yet installed everywhere) and then comes the soil. I assume that I still need a gravel layer here as drainage to divert the water.

Thank you very much.

Hello,

there is no sealing visible in the photos at all. The shell sealing was not carried out.

Best regards

I have no expertise in wooden prefabricated houses but the fabric of the exterior plaster draws moisture from the ground like a wick. There is no sealing visible in the photos at the transition from XPS to wood. Are there no pictures of this? In our solid house it looked like this.