Steps to Reproduce:
Expected Result: Task(s) highlighted prior to save back to PPM are still highlighted.
Actual Result: Tasks are no longer highlighted.
This is due to a Microsoft Project limitation with use of XML.
Clarity 16.x and 15.x
This is working as expected due to the behavior of Microsoft Project. This can be reproduced in Microsoft Project standalone by saving the project as an XML locally on the machine instead of saving back to PPM. When you open the XML file in MSP, the highlighting is lost.
You can create a highlight view to workaround the behavior, but this is only available for use with yellow highlighting. There is no workaround to include other format changes such as blue highlighting, or green font.
Step 1: Create the Highlight View
Step 2: Designate with tasks you want to add to the Highlight View
When you save the Changes back to PPM, if you saved the highlight filter to your default view in MSP, when you relaunch the project from PPM to MSP, the tasks will show up highlighted. Otherwise, you can click on the View you added the highlight to, and then you will see your highlighted tasks.