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Changes between Initial Version and Version 1 of Ticket #6200, comment 27

initial	v1
1	1	@Karim, it turned out that {{{Modelica.Mechanics.MultiBody.Examples.Constraints.PrismaticConstraint}}} actually had wrong singular initial conditions, see the discussion in MSL [https://github.com/OpenModelica/OpenModelica/issues/7818 #7818]. Apparently the problem is fixed on MSL master, can you check your algorithms with that version?
2	2
3		~~I guess we need to port that fix also on the 3.2.3 and 4.0.0 maintenance branches~~.
	3	EDIT: These changes were also ported on the maint/3.2.3 and maint/4.0.1, see [https://github.com/OpenModelica/OpenModelica/issues/7966 #7966], we will get them as soon as the package manager refers to them.
4	4
5	5	The question of course is what we should do in this cases. I guess the right solution is to warn the user of a nearly singular problem. If a solution is found, so be it, but one should be made aware that it is borderline. Dymola follows the approach of "least users's harassment" and remains mostly silent in these cases, but I don't think hiding potential problem is a good idea. At least from a researcher's perspective, I understand engineers in industry often need solutions that work, not silly questions the can't answer :)