Post upgrade to APM release 7.12.3, a user found that the Site Interoperability Profile Properties Asset tab was blank when it should have contained a list of the Asset Properties to be selected in a page under the Asset tab, per the screenshot below:
This issue has been corrected in release 7.12.4. This issue will therefor only occur in environments upgraded to 7.12.3 where the user is using Assetwise Interoperability. The workaround is to check-in the profile by clicking the Edit button on the lower right corner of the dialogue and then check-out the profile by clicking the Edit button once more.