Map Series Missing After Upgrade to Pro 2.3

[deleted-user-1_r2dgYuILKY]

Today I upgraded to ArcGIS Pro 2.3. I opened an aprx file with a map series. Every data link is broken* and all the map series pages and layer definition queries are gone. WTF!?!? 

*we have a drive with two separate top-level folders "PROJECTS" and "DATA." The file paths all say "M:\PROJECTS\DATA\..." after the upgrade.

Luckily, this project was from an imported MXD, so I can start over without too much hassle. Still, this ain't good!

[TomBole]

Hi Levi, 

So far, we have been unable to reproduce this serious issue. When you report that every data link is broken am I right to assume that in Map View the layers all have broken links?  Are you experiencing this data connection problem with only data involved in a map series?  Do you see this problem with projects/maps/layers that are not part of a map series?

I suspect that the issue is not specific to map series and would like to rule it out if we can.

Thanks for your help, 

Tom

[deleted-user-1_r2dgYuILKY]

Yes, I only noticed this data connection problem on the aprx with the map series. I've never seen anything like it. The links are correct, except for the added folder in the path, i.e. "M:\PROJECTS\DATA\blah\map_series.aprx" where PROJECTS and DATA are two completely separate directories on the drive. Also, all the layer definition queries were gone, probably as a result of the paths being screwed up. 

[TomBole]

Levi, 

Thanks for the response. Fortunately, this issue only appear to be affecting your map series project. Unfortunately, we have been unable to reproduce this issue in house. There must be something specific that we (Dev team) are missing in either your workflow or with the particular project. 

Are you able contact Esri Support? They are better equipped to handle troubleshooting steps and gather bug data. They can be contacted at https://support.esri.com/en/contact-tech-support.

Sorry I could not be of more help.

Tom

[deleted-user-1_r2dgYuILKY]

OK. I'm in the middle of a separate support case, so I'll mention this to the tech. All I can tell you is that this project was created from an imported MXD and saved in Pro 2.2.4. When I opened it in 2.3, everything was missing.