AECOsim Building Designer
In AECOsim Building Designer V8i and earlier CONNECT Edition versions, certain graphics would disappear after publishing the i-model.
Publish the i-model using AECOsim CONNECT Edition Update 3 and it is exported as expected with no missing graphics.
Image 1. DGN file has been exported from v8i and opened in v8i.
Image 2. DGN file has been exported from CONNECT and opened in CONNECT.