Projected and Fixed Sketch Geometry is Moving and Sketch Constraints are Broken

[JeTFiN]

Lately I've been having issues with fixed and projected lines within a sketch having the ability to move, along with other related errors like not being able to constrain points and lines, having random profiles appear out of the blue, and other sketch issues.  These issues have occurred across multiple sketches in multiple assemblies on multiple computers so it seems to be a bug in the software.  I am open to other solutions, however.

I will post a video demonstrating precisely what is happening as well as an F3D file showing the problem sketch.

[dsouzasujay]

Hi @JeTFiN,

In the attached design , You have used Direct modelling.

I recommend you to use parametric modeling in Fusion 360 to your advantage.

In parametric modeling one can quickly and easily change the features from the timeline.

[JeTFiN]

I don't think projected and fixed geometry should ever be able to move within a sketch, should it?

Unfortunately parametric isn't ideal with the main assemblies in many workspaces as the time loss to managing design histories makes modelling take around 50-250% longer in addition to the slow performance caused by having thousands of components in the same workspace.

[TrippyLighting]

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@JeTFiN wrote:

I don't think projected and fixed geometry should ever be able to move within a sketch, should it?

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Nope!

In fact, the purple lines in your sketch should not be purple anymore either. because the projection source does not exist anymore. Yet when you go into the sketch it still provides the option to "break link".

@dsouzasujay I guess there's a bit of a mess to fix 😉

[dsouzasujay]

Agreed! this is a bug.

Thanks for reporting this @JeTFiN , I'll pass it on to the development team to investigate.

Thankyou @TrippyLighting  for pointing the problem.

I can easily reproduce this bug from scratch, Bug is specific to projecting a sketch.

[dsouzasujay]

Reported as FUS-99891 in internal issue tracking system