ORD Workspace on ProjectWise Issue

Greetings,

We are trying to place a workspace from our local network into PW using the Bentley import tools and following the videos at this link:
https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/38760/video-how-to-deploy-a-dynamic-projectwise-managed-workspace

It's not working as intended and is reading very few of the workspace/workset files. 
We did make note of the ORD/PW compatibility chart:

https://docs.bentley.com/LiveContent/web/ProjectWise%20Version%20Support%20Matrix-v1/en/GUID-1A2E193F-C3D9-4709-92A2-E5B9301B5946.html

We are on a hosted PW server; it is version 10.00.03.140. We are trying to deploy ORD 2020R3 (Update 9). They are not listed as compatible in this matrix, but we have a feeling an awful lot of folks besides us would be seeing issues with this combination if the compatibility were the cause of the issues. I wanted to ask: what is it between these versions of the software that is incompatible? Or, has this combination of versions simply not been tested and then certified? We're guessing the later, but wanted to be sure.

Thanks!