[BUG] Selecting joint in timeline highlights the whole model in blue irreversibly

[MagnusBraun]

Hello everyone,

I seem to have a (file specific) issue with the simple selection of a joint in the timeline. Here is my model before the bug:

I can select the joint marked as 2 just fine. It highlitghts just the symbol on 3D view as per usual.

However if I left/right click any of the joints in red (first 2 marked as 1, but applies to all joints to their right in red) the whole model is highlighted (as if everything including all joints and sketches were selected with the mouse window selection):

This selection does not go away unless I close the file, and I can replicate the behaviour after opening it again. This makes it impossible to work with these joints or the model (since I can't see anything).

Notably some of these joints have been generated with the new command "Duplicate With Joints", but so have the green joints. Other files I have tested work just as expected.

Help with this issue would be much appreciated!

Greetings,

Magnus

[MagnusBraun]

Edit: Hovering over the red joint also triggers this behaviour.

[jhackney1972]

Please attach your model.  Open it in Fusion 360, select the File menu, then Export and save to you hard drive.  Attach to a reply post using the Attachment section.

[MagnusBraun]

Hi,

I've attached a dumbed down version of the file where the bug persists (both for symplicity and IP reasons). The variable/component/sketch/construction names don't seem to influence the result. The same goes for further subassemblies that were present before.

Note how if you go further down the timeline to after the circular pattern the problem dissappears. Sometimes when coming back before it reappears, sometimes not (this is more easily reproduced in the full model).

Working a bit on the model since this morning has made the problem go away on the main model at least, so the bug can't be anything too serious. I suspect it to come from the big number of subassemblies which are replicated with the circular pattern, but I could be wrong. It would still be annoying since in order to work on features that have to be replicated you have to revert to before the pattern...

Greetings,

Magnus

[jhackney1972]

I see your problem but I do not have a solution.  I will say your model is a sub-assembly nightmare.  You have empty sub-assemblies scattered throughout your browser.  This could be because you said you "dumbed down" the model but it not, try to avoid this condition.

@jeff_strater , do you have an answer for this problem?  I have attached an F3D version of the OP model so you do not have to import it.  To see the issue, select the first timeline Joint indicator from the left.

[MagnusBraun]

Thank you for looking into the issue!

As for the subassembly part, I know the complexity of the model is high (and yes, other subassemblies are present in the full model hence the seamingly useless layers) but this approach has served me well until now. I didn't think I would reach Fusion's limits though, I might dial it back a bit.

For context I am eagerly awaiting a global parameter system. Since the whole model is parametric I design every component in the same file. I have also used the parameter file derivation method in the past, but it becomes clunky for bigger projects. Until then I'll have to live with the limitations of inserting linked components (ie. updating a chain of linked/derived models) or more complex model, and maybe even compromise and relocate some less essential assemblies to linked files.

As for now I can live with it (and even small technical issues) as long as I can export a clean BOM and iterate on the components in place simply by creating parallel ones, since this method allows it.

Magnus

[TrippyLighting]

@Phil.E to the rescue!

If we don't get a response by mid next week, please bump this thread and I'll  post it on the Fusion 360 Slack channel.

[Phil.E · Accepted solution]

Logged as FUS-136417, thanks for reporting it and providing the models everyone!

[Phil.E]

The developers have noticed that if you delete and replace a circular pattern in the design the problem is removed.