This probably isn’t considered a bug, and it probably didn’t start with 2024. If you group your mates, you can no longer drag them to re-arrange them. Even if you are on the list of mates for an individual part, they can not be re-ordered.
image.png
I am a GIF. Click me!
mates.gif
I dont generally group mates like this except in very particular specific examples, so I would likely not have noticed this for some time..
But to hear they’ve changed something that used to work into something that no longer does, doesn’t suprprise me.
In fact, there are a few changes to 2024 that seem to me to be regressive…
(Most notably, Escape key no longer closing the Measure dialog, I’m looking at you.)
I only lock the concentric mates, if I have no other particular need of restraint, because it removes the (-) from the feature tree to enable rapid assessment of the assembly being defined. And I’ve largely never had an issue with it.
But you are correct about how some mates can behave oddly. I almost always do whatever I can to avoid Tangent mates.
Even if it means adding more sketches, geometry or additional mates to achieve my preferred outcome.
I am finding 2024 to be more problematic in selecting components within subassemblies.
Particularily newly added, modified or restructured parts within subassemblies.
I feel I have encountered this issue before where for whatever reason I am attempting to select a component within a subassembly and the software behaves like it simply doesnt exist. I can see the part, but the software acts like it just isn’t there at all and I cannot select any aspect of it, for any reason.
But it definitely feels like it is much more frequent with this version.
I will end up selecting objects “behind” rather than the item I am looking at.
I have not as yet determined a pattern to this behaviour tho it appears to be more noticible when I have recently modified the component or assembly housing it.
Is this specific to me..? Or has anyone else experienced this..?
I’ve definitely seen the same thing, but it started with 23 (or maybe even 22.)
We are all having this issue in 2023 over here. Add a part in a sub-assembly, go back in the assembly, the part is displayed but unselectable. Delete and undelete the sub-assembly and then the part is selectable again. P.I.T.A. 
I use them occasionally. They seem to be less problematic than they were a few years ago.
My experience is the exact opposite. I’ve never had a problem locking rotation, but I have had parallel mates flip on me enough I never use them.
Alex, would you mind clarifying that? The only times I’ve had a lock on a concentric mate not behave like I wanted was when one of the entities was a sketch point instead of a cylindrical or arc edge or face.
It isn’t that it behaves incorrectly, it is that most users do not understand the logic behind mating and therefor will put concentric on whatever is a circle and aligns with the position they desire, so the lock ends up locking the movement of things around the axis of whatever it is locked onto. Also, the lock is applied on a specific axis in the environment rather then on the ‘axis’ the mate is using.
For instance, have a wheel concetrically locked on a steering axle. Change the steering axle to have it turn left, see what happens. The steering axle turns left, but the wheel remains straight and throw an error.
image.png
Axle turned
When using parrallels instead of concentric locks, this doesn’t happen.
Yup. This is exactly the behaviour I am experiencing. It is not new, but does seem more frequent.
Sometimes simply hiding/showing the part “wakes” it up. Sometimes it will take supress/unsupress.
I’ve never actually done delete/undo. (Tho I hardly ever use undo outside of a sketch environment.)
Yeah my apologies I meant suppress/unsupress. Got mixed up in traductions 
Just an update on this. The word from SW is that opening up parts “lightweight” causes the shift to the “CAD Family” method. I’m still working with my VAR to sort out the issue, but he was able to “fix” my affected parts by rebuilding and saving them in 2025, then backdating them to 2024 for me.
According to them, the affected versions are SP4 and SP5.
So i would avoid using lightweight parts if at all possible in 2024 SP5. I would also recommend uninstalling the 3DExperience bloatware from your Programs / Features that comes with each installation of SW.
lol, another reason to avoid lightweight altogether. Never used it, never will. It causes more issues then it saves time.
1 Like
I used it for a while a few years ago. I went back to the workflow I had been using before.
Maybe we should start a thread with “Things SWX bragged about that we don’t bother with”
- Lightweight mode (I don’t bother with this either.)
- FeatureWorks (Has it EVER generated anything worthwhile?)
- . . .
I always only use parallel mates with planes, I have run into issue when using parallel with line/edges or other non-planer geometry. I think it has issues when the mate alignment is greyed out, it flips but you can never fix it
- Structure Systems. Others may disagree, but I always thought weldments worked just fine (and still do).
1 Like
If you don’t group mates, they will re-order themselves on their own. Right click to unsuppress a mate. Go to right click again and realize you are now hovering over a different mate.
I would say 2022 was the best recent release. I’ve seen no improvements (that affect me) in 2023 or 2024, but I’ve definitely seen things that affect me negatively.
stability wise 2022 was very good, but it has a couple of bugs in pdm and multibody that could kill your model (like taking hours to generate a 2d view on the drawings).
I am setting up and migrating the servers right now, so I stopped playing with 2024, but please keep commenting here so I can better test it before deployment.