Hi Frenkie,
Thanks for the follow up. I don't believe the issue is skipping URs. URs, for the most part, are cumulative so you can go from UR11 and then UR13 while getting all of the fixes that were in UR12. I think the problem is around the fact that the entities and customizations have been modified by an installed managed solution. Do you see the same behavior with the OOB solution export within the web client? The reason I ask this is to understand if we have to troubleshoot a custom solution or if it is something I can look into on my end without involving custom code.