The PTC Mathcad team has been working with Microsoft on this specific issue, which was created when Microsoft fixed a bug in .NET 4.5 which then had an undesirable side-effect on how Prime is able to render multi-part text symbols. The most visible impact is that adjacent lines can become misplaced and/or disconnected.
Microsoft has been working on a solution for us, but they will not undo their original bug fix. The fix they provide PTC will allow choosing between the old and new behavior by application.
Due to Microsoft's Dual Branching Servicing Model the fix will need to be deployed in a Limited Distribution Release, which means that Microsoft is addressing Prime’s specific issue in a *hotfix* that PTC will make available to our customers. The PTC Mathcad team will test the hotfix once received from Microsoft, and as soon as we validate that there are no regressions we will begin making it available to customers.
It is important to note that this issue is purely a visual issue and in no way impacts the calculations in Prime.
