topic Re: MAX 2023 keeps prompting close spline in 3ds Max Forum

MAX 2023 keeps prompting close spline

hdizajn — Sat, 07 Jan 2023 10:42:43 GMT

Hi,

I have some imported dwg splines and every time I go to sub and only move or rotate them (so not creating anything) I get a prompt "close spline" and like 4 times since I guess it's detecting 4 vertices close enough to close. Should I report this as a bug or something?

Thanks

Re: MAX 2023 keeps prompting close spline

sconzamirko — Fri, 07 Jul 2023 10:21:39 GMT

No solution yet

Re: MAX 2023 keeps prompting close spline

RobH2 — Sun, 09 Jul 2023 02:07:52 GMT

Can you upload the spline in a file so it can be looked at?

Re: MAX 2023 keeps prompting close spline

jibijib — Mon, 10 Jul 2023 03:40:12 GMT

Is it prompting to close when the two end vertices are snapped together?

What are they importing into Max as?

Re: MAX 2023 keeps prompting close spline

ephb — Mon, 10 Jun 2024 16:02:29 GMT

This is still a bug in 2024. If anyone envounters this, enabling the automatic welding and setting welding treshold to 0 works around this issue.

Re: MAX 2023 keeps prompting close spline

jibijib — Tue, 11 Jun 2024 11:17:36 GMT

... and you should be able to set persistant default using this:

https://cganimator.com/3dsmax-2021-1-custom-default-parameter-and-the-manager/

Re: MAX 2023 keeps prompting close spline

ephb — Tue, 11 Jun 2024 12:49:04 GMT

To be clear, this is a bug.
Even though "automatic welding" is unchecked, it will still attempt to. The benefit of turning it on is that one can put a treshold so small it will never weld, but the feature can not be turned off.

Re: MAX 2023 keeps prompting close spline

jibijib — Wed, 12 Jun 2024 07:48:23 GMT

... and there isn't a 'spline' reference (like there is for Editable Poly) to keep the setting persistent in any of the INI files or through other methods. Ugh.

Nothing like a pop up dialogue box to keep things working smoothly.

Re: MAX 2023 keeps prompting close spline

RobH2 — Wed, 12 Jun 2024 14:02:08 GMT

I would recommend reporting it:

Bug Reports:
https://www.autodesk.com/company/contact-us/product-feedback

Re: MAX 2023 keeps prompting close spline

PuChiNgBaLLz — Fri, 21 Aug 2026 14:04:08 GMT

Max 2023, the issue is still there, it's incredible annoying to move or make flat a huge cad file, the prompt pops up for every one of the now...24957 vertices, and I dont want to turn off and on the welding threshold every time I use the spline tool, add 2 buttons Yes to all, No to All. Thats it

Re: MAX 2023 keeps prompting close spline

MartinBeh — Fri, 21 Aug 2026 17:55:50 GMT

Can someone share a .max file or precise steps to reproduce this?

Re: MAX 2023 keeps prompting close spline

RobH2 — Sat, 22 Aug 2026 12:57:53 GMT

As a diagnositc, can you save your current ENU by renaming it and then relaunch Max to see if the issue persists?

Re: MAX 2023 keeps prompting close spline

PuChiNgBaLLz — Tue, 25 Aug 2026 18:08:30 GMT

Something like this but with 10.000 times more vertices, it's one multi spline, with lots of open vertices cause we don't care about them, but the prompt is killing me.

Re: MAX 2023 keeps prompting close spline

MartinBeh — Wed, 26 Aug 2026 20:12:32 GMT

@PuChiNgBaLLz - thanks, but it would be much easier for us if you could just share a .max file for us to investigate.