Promblem with placing dimensions in assembly drawing

Hi guys, I have a problem with dimension tool in drawing of assembly mode. I cannot put almost any dimension, for example external/internal diameter of top view of this model:

https://cad.onshape.com/documents/6082f9fbf7664e6cb1feb4e0/w/d7182cc60750ae1cb1d898bf/e/a4b16b06989363d0f4c2d871

Can anyone help me with that? I think that this problem is occur when I make a complex model with few parts on different planes or this is some bug of OnShape.