I work and teach a method since SolidWorks 2013 that consist to use a single and representative part and use topDown method by creating a new part in context of assembly and making an Offset Surface function at 0 and convert it to Sheetmetal.
You know, if the first part or "Envelope" change, all parts is updating.
If I uncheck "Envelope" it look a littlebit more stable, but not that much.
So, since SolidWorks 2019, this method makes errors. The surface allways losting his references.
If I open the part, my SolidWorks seeting open the external reference in the background. But if I open the Drawing, nothing is loaded causing errors.
If I open the part, and the assembly and I close the assembly, the part lost his references.
If I try to break the references, the surface ID change, and all my parent's function fail.
I never saw this mess in any previous SolidWorks.
So what is happening? Somebody understand and/or experienced the same issue?