Please read about Topological naming problem in the wiki or search the forum for that term. You cannot completely avoid it but you can reduce the effects. Have a look at this page, especially the paragraph about creating stable models.

... I'm facing an issue. Certainly due to "the internal freecad problem of topological naming" Before to add the last window Capture.PNG After adding the last window Capture01.PNG ...

Ich habe jetzt keine Zeit mehr, aber zwischen 0.17 und 0.18 hat sich die OCC-Version geändert. Damit haben unkontrollierbar durch FreeCAD auch die Kanten und Flächen möglicherweise neue Nummern bekommen ("Topological Naming").

This sounds like the topological naming problem . Essentially, TechDraw dimensions ( TechDraw_Dimension_Length ) depend on the names of the ...

There was change in OCC, the geometric kernel, between 0.17 and 0.18 which caused changes in topological naming.

... I didn't realize that new versions of FreeCAD also can change topological naming, so now I know that too. ... I would not say this is correct. What you experience looks ...

... diameter of 0.000 and an angle of Inf.... This is a consequence of the topological naming problem . I'm familiar with this and expect it when the model changes. I didn't realize ...

... diameter of 0.000 and an angle of Inf.... This is a consequence of the topological naming problem . What this essentially means is that the edges of the model got a new internal ...

... if I find a procedure to reproduce the problem This sounds like the topological naming problem . Essentially, TechDraw dimensions ( TechDraw_Dimension_Length ) depend on the ...

hello I am quite new to FC, recently (after getting mad for a part) I read the https://www.freecadweb.org/wiki/Topological_naming_problem so I am following the guidelines. But why can't I create a datum plane with a known value (example from a spreadsheet)? It would be super user friendly! Annotazio...