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You are using windows and I am using linux (hence different version numbers).

My appimage is as below (somewhat behind the latest - I will try download later when I have some time).
I do not have "changing to black" problems with it either...
Let's hope there is someone with windows who can help you testing?

bambuko wrote: ↑Wed Jun 29, 2022 9:19 am "this is not a mirror
is this what are you trying to achieve"
(LinkScaleColorBlack111.png )

Because editing projects sometimes use the "placement panel"
Pressing the OK button will make the color black

My purpose is to mirror an "assembled object"
Then the color of the assembled object after mirroring remains the same

bambuko wrote: ↑Wed Jun 29, 2022 10:11 am

Code: Select all

OS: elementary OS 6.1 Jólnir (Pantheon/pantheon)
Word size of FreeCAD: 64-bit
Version: 0.20.29177 (Git) AppImage

Then I think it might be a compiler problem???
Because I originally used it (29177 win)

Thank you very much for your reply

Roy_043 wrote: ↑Wed Jun 29, 2022 9:27 am Confirmed, IMO this a bug.

Excuse me ROY

1. If you are sure this is a "BUG"
   Where do I go to the forum to post?
   (Is the "OK function of the placement panel" making the color black an issue?)
2. if i have "request update"
   Where do I go to the forum to post?
   and how to post?
   (I want to request an update about the "Draft mirror will not turn white,keep the same color after mirroring" feature)

Thank you very much

#1: The normals of the faces get flipped. That should not happen. So this is a bug. For information on the correct procedure see: https://forum.freecadweb.org/viewtopic.php?f=3&t=5236.

#2: I cannot reproduce this. Please start a new topic in the Draft forum to address this: https://forum.freecadweb.org/viewforum.php?f=23.

Roy_043 wrote: ↑Wed Jun 29, 2022 12:10 pm #1: The normals of the faces get flipped. That should not happen. So this is a bug. For information on the correct procedure see: https://forum.freecadweb.org/viewtopic.php?f=3&t=5236.

#2: I cannot reproduce this. Please start a new topic in the Draft forum to address this: https://forum.freecadweb.org/viewforum.php?f=23.

Thank you very much for your reply

You can restore the original colors of the Link by changing the scale vector to [1 1 1] and then back to [-1 1 1].

Roy_043 wrote: ↑Wed Jun 29, 2022 3:24 pm You can restore the original colors of the Link by changing the scale vector to [1 1 1] and then back to [-1 1 1].

yes
i know this
thank you very much
i wait for update

Roy_043 wrote: ↑Wed Jun 29, 2022 3:24 pm You can restore the original colors of the Link by changing the scale vector to [1 1 1] and then back to [-1 1 1].

Hi ROY
I found that the "Scale" of "Arrray_Patten" also turns black
So it shouldn't be a "Link object" problem
Maybe "Scale" in the library has something to do with it?

In your last example you are dealing with a Link array. So I would say it is still most likely Link related.