Hello,
In Illustrator CC latest update, my following script does not work:
1- Select a couple paths (in script) (all of them close paths in different groups)
2- execute my action which offset paths with certain amount

The problem is in this new version after the action dis-select all of them except one, but before this version it worked and keep all of my selection paths still as selected ( by path I mean the new offset paths, but for all of them)

It really made trouble for my script in the company, because some computer still does not have the latest CC.

Thank you
Maryam

This has been a bug for at least a version or two: draw a shape, go to transform it in the Properties panel, and even though the "Maintain width and Height Properties" icon indicates "not constrained", adjusting one of the dimensions adjusts the other proportionally. This seems to happen only in a fresh file (perhaps fresh launch of Illustrator), and once I click and unclick the Constrain button once, it doesn't recur in that session.

https://www.dropbox.com/s/u0gqadn2lezzq7n/Constraint%20bug.mov?dl=0

So in the screen grab above, I draw a box freehand, then in the Properties panel, begin adjusting the height with my arrow keys. You can see the icon to the right indicating width and height are not locked together, but still, as I adjust the height, the width changes in proportion.

Note also that once I click that icon to specify "Constrain," then unclick it back again, now I can adjust the two parameters independently. And from then on in the file, the bug doesn't recur.

Illustrator 25.4 update broke scripts that try to read XMP data that worked in previous versions of Illustrator. This is the Mac version (have not tried in Windows).

It appears to be getting the error on this line:

ExternalObject.AdobeXMPScript = new ExternalObject('lib:AdobeXMPScript');

Comparing the frameworks in the package contents for 25.3.1 vs 25.4, the AdobeXMPScript framework appears to be missing in 25.4.

Below is an example script to read font data that worked in 25.3, but errors loading the library in 25.4

// load XMP Library

function loadXMPLibrary() {

if (!ExternalObject.AdobeXMPScript) {  

   try {  

       ExternalObject.AdobeXMPScript = new ExternalObject('lib:AdobeXMPScript');  

   } catch (e) {  

     alert('Unable to load the AdobeXMPScript library!');  

     return false;  

   }  

}

return true;

}

// unload XMP Library

function unloadXMPLibrary() {

if (ExternalObject.AdobeXMPScript) {  

   try {  

       ExternalObject.AdobeXMPScript.unload();  

       ExternalObject.AdobeXMPScript = undefined;  

   } catch (e) {  

     alert('Unable to unload the AdobeXMPScript library!');  

   }  

}

}

// list used fonts

function list_fonts () {

var doc = app.activeDocument;

var fontsInfo = [];  

loadXMPLibrary ();  

fontsInfo.push (getFontsInfo (doc.fullName));  

unloadXMPLibrary ();  

var info = fontsInfo.join ('\n\n');

return info;

}

// search used fonts

function getFontsInfo(file) {

var arr = [],

   xmpFile, 

   oXmp, 

   fontNumber, 

   i, 

   path, 

   fontfamily, 

   fontface, 

   ns = 'http://ns.adobe.com/xap/1.0/t/pg/';  

xmpFile = new XMPFile(file.fsName, XMPConst.UNKNOWN, XMPConst.OPENFORREAD);

oXmp = xmpFile.getXMP();

fontNumber = oXmp.countArrayItems(ns, 'xmpTPg:Fonts');

xmpFile.closeFile(XMPConst.CLOSEUPDATESAFELY);

if (fontNumber) {

   for (i = 1; i <= fontNumber; i++) {  

       path = XMPUtils.composeArrayItemPath(ns, 'xmpTPg:Fonts', i);  

       fontfamily = oXmp.getStructField(ns, path, XMPConst.TYPE_FONT, 'fontFamily');  

       fontface = oXmp.getStructField(ns, path, XMPConst.TYPE_FONT, 'fontFace');

       arr.push([fontfamily+' '+fontface]);
   }  

}

return arr.join(', ');

}

alert ("Fonts used in this document: \n" + list_fonts ());

Hi, I am a design professor and most students in my class experienced a specific problem when we were doing an exercise to learn how to apply the correct color palettes to different logo files. Specifically, we created fictional identity designs as a means to learn how to create a production-ready bundle of files (a logo with versions in b&w, spot color (Pantone), 4-color process, and RGB). Almost 100% of my 18 students had their 4-color process file -- which was filled with CMYK colors upon designing, and should have stayed CMYK -- show up as being filled with RGB when opened after having been closed.

Through testing this unusual pattern of error across all of their files, it appears that Adobe Illustrator will choose to show colors in the color palette that was last opened within the application, and if the palette isn't the same as the fill colors, it creates a color translation of what the color should be into what it want to show you. Stated another way, the students had trouble getting the color palette to hold the color information they entered (percentages/values of either CMYK or RGB, in particular). Regardless of what they had entered, a computer with one or the other of these color palettes open would override their settings. Unacceptable. In one case, I also witnessed a student manually enter RGB values, only to deselect the item, select the object again, and then find different RGB values in place than those I watched him enter. In 19 years of teaching, I've never seen this problem be so widespread across student files.

For what it's worth, the Pantone palette behaved. The problem specifically is between RGB and CYMK colors/color palettes. PLEASE FIX THIS. This will cause major problems in real projects that rely upon color mode accuracy. Please contact me with information about the problem and/or solution. We would appreciate a follow-up.

I know that AI's eydropper pick color not directly form raster image, but from it's preview, but I think it's terribly wrong, when you pick a color from a CMYK image placed inside CMYK document and get mutated color.
For example, I have photo blended into single colored background and I don't remember which one exactly. I pick this color with eyedropper inside AI to match image edge with vector background and it almost looks OK, but when it's printed, the mismatch is quite visible.
Other people, whose designs I dissect quite often, seem to forget or more likely don't know about AI picking colors (because it's not natural), and if I don't find it, I got all the blame.