SysMLv1/UML2: Whilst fUML does not support InterruptibleActivityRegion, there are still ways to interrupt a StructuredActivityNode in Cameo Simulation Toolkit
Mathematica: Notebooks: Automatic Cell Grouping mode can be a "royal pain", turn it off by setting Cell > Grouping > Manual Grouping
[FIXED in v2022Refresh1]: BUG: MagicDraw/Cameo: 19SP3/v2022xGolden: Activity Diagrams: Pin display mode 'Position of Labels' does not stick, label positions in Diagrams have sometimes moved after re-opening a project [and "FIX"] ARCHIVAL (2022): This content is now considered historical only!
MagicDraw SysML: [v2022xGolden,v2022xRefresh1]: ISSUE: Automatic assignment of the Type of the 'result' of a ReadStructuralFeatureAction not working with drag & drop.
The integration between Wolfram Workbench and Mathematica is partly gammy (as of latest versions 2022-08-23)
Mathematica: Wolfram Workbench: Sometimes the code syntax checking goes haywire (with red nearly everywhere) for no good reason (even when the code load and runs fine in Mathematica). WORKAROUND: Just restart Eclipse.
MagicDraw/Cameo 19SP3/v2022xGolden: [FIXED in v2022xRefresh1]: Activity Diagrams: Pin display mode 'Position of Labels' does not work correctly for 'Name And Type Labels Inside', only shows the Name inside (not the Label) [and WORKAROUND] ARCHIVAL (2022): This content is now considered historical only!
SysPhS-1.1: Does not support Modelica's 'initial equation'. WORKAROUND: One can often achieve the same by directly setting a default on a variable and/or by using additional variables/parameters with 'start' and additional equations.
MagicDraw/Cameo: By default assumes custom units are both Unit and DerivedUnit and that quantity kinds are both QuantityKind and DerivedQuantityKind. Just remove the "Derived" variants if they don't apply and add the "Simple" variants.
MagicDraw/Cameo: If you can't find Usage on a particular diagram just use a Dependency then the refactor context menu item.
[HISTORICAL] HOWTO easily "hack" the SysML-1.6 ~InterfaceBlock conjugation and «~interfaceBlock» keywords in MagicDraw/Cameo. [NOW SUPPORTED 2024x Golden] ARCHIVAL (2022): This content is now considered historical only!