# Problem with patch

**URL:** <https://discourse.mcneel.com/t/problem-with-patch/156228>\
**Category:** Rhino\
**Tags:** mac\
**Created:** [March 11, 2023, 12:24pm UTC](https://discourse.mcneel.com/t/problem-with-patch/156228 "2023-03-11T12:24:06Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Liisa\_Riski](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/liisa_riski/32/448379_2.png) [@Liisa\_Riski](https://discourse.mcneel.com/u/Liisa_Riski)\
**Post date:** [March 11, 2023, 12:24pm UTC](https://discourse.mcneel.com/t/problem-with-patch/156228/1 "2023-03-11T12:24:06Z")

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Hi there,

It seems that the patch tool has stopped working properly. Even with the simplest of closed curves the effect is totally crazy. Tried with points and the outcome is the same. I have also tried with different values and its doesn’t help. How can I solve this…

I also asked my student colleagues and some of them have the same problem.

 ![Screenshot 2023-03-11 at 14.21.25](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/3/0/c/30c5d175c1202b9daa0791b43ae86f899e404844.jpeg)  
 ![Screenshot 2023-03-11 at 14.21.40](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/2/b/1/2b1f605f3b71da759f6b3484c9381759c0016192.png)  
 ![Screenshot 2023-03-11 at 14.22.09](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/8/2/1/8211abca30476a865ae674e983a6051308309839.png)  
 ![Screenshot 2023-03-11 at 14.22.24](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/8/9/0/8901d78c87894259f9fe599b116a057c51ad0de1.png)

Help us please.

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<div class="post-metadata">

**Author:** ![Helvetosaur](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/helvetosaur/32/635974_2.png) [@Helvetosaur](https://discourse.mcneel.com/u/Helvetosaur)\
**Post date:** [March 11, 2023, 12:38pm UTC](https://discourse.mcneel.com/t/problem-with-patch/156228/2 "2023-03-11T12:38:12Z")

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Without the file it’s hard to know. Try unchecking adjust tangency and automatic trim for starters. Also make sure the curves aren’t grouped with something else you’re not seeing.

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<div class="post-metadata">

**Author:** ![Liisa\_Riski](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/liisa_riski/32/448379_2.png) [@Liisa\_Riski](https://discourse.mcneel.com/u/Liisa_Riski)\
**Post date:** [March 11, 2023, 1:14pm UTC](https://discourse.mcneel.com/t/problem-with-patch/156228/3 "2023-03-11T13:14:24Z")

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hi Helvetosaur,

I am trying too create a topography as normal. The curves are all levelled and not grouped.  
The effect is even crazier if trying with multiple curves the same time.

adjust tangency and automatic trim doesn’t have affect.

The remains even if opening new file or opening old file where the patch has worked before…

 ![Screenshot 2023-03-11 at 15.10.20](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/4/a/f/4afe99dcc50666d78a76bb63b343dbb4fb899b17.png)

this is the effect when trying to patch 4 closed curves set 0.5 m apart

 ![Screenshot 2023-03-11 at 15.09.37](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/8/1/2/812aea1aa4dbcccce3b81bcebed7222db350be61.png)

 ![Screenshot 2023-03-11 at 15.09.50](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/5/8/e/58e432f4ef945986c5510e46ba166404e30a7816.png)

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<div class="post-metadata">

**Author:** ![Helvetosaur](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/helvetosaur/32/635974_2.png) [@Helvetosaur](https://discourse.mcneel.com/u/Helvetosaur)\
**Post date:** [March 11, 2023, 2:19pm UTC](https://discourse.mcneel.com/t/problem-with-patch/156228/4 "2023-03-11T14:19:55Z")

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Well, again, without the model, it’s impossible to analyze…