Alot of Props from Mounted Games are missing | Source Engine | Page 1

I don't know what I am doing wrong, or if the amount of doors is truly more limited than I remember, but I noticed that there should be ALOT more doors from the Mounted games like Half-Life 2 and CSGO. but there is only a handful, the rest are door FRAMES. I tried EVERY METHOD of mounting the rest of the content but the number of ACTUAL doors remains the same

I dont know what I am doing wrong, could someone give some tips or help?

Update: I think the issue is that the other doors are skins for the same model

#Alot of Props from Mounted Games are missing