I am currently working on a project, where I have a landscape plan DWG (has all the plants) x-ref into a hardscape plan (with no plants). When I went to generate a concept plant schedule, it generated with correct plants and quantity IF I do that in the landscape plan DWG, BUT if I generate it in the hardscape plan DWG, there are a bunch of plants missing.

See the attached screenshot, the schedule on the left was generated in the landscape plan, and the schedule on the right is generated in the hardscape plan, which has the landscape plan as a x-ref.


I have ensured that include xref is turned on, ensured the layer status of the xref is exactly the same as the original file.
The problem not only seems to be missing a whole category of plants, the incorrect schedule also miscalculated the quantity. In the screenshot example, the system recognize there are 4-in hardwood mulch, but the schedule doesn't calculate the quantity correctly.