Blend objects based on Paintbrush strokes render incorrectly and Illustrator crashes
The document worked correctly approximately two weeks ago.
The artwork contains many lines created with the Paintbrush Tool. Some of these brush strokes are used as source objects for Blend objects.
Current problem:
All Blend objects that are based on Paintbrush strokes are rendered incorrectly. Colors and/or stroke appearances change significantly after opening the file.
Normal objects and non-blended artwork appear correctly.
The document was originally displayed and saved correctly approximately two weeks ago. The problem appeared after recent Illustrator updates.
Tests performed:
Illustrator 30.8.1:
Blend objects based on Paintbrush strokes render incorrectly.
"Save As" becomes extremely slow / Illustrator becomes unresponsive.Illustrator 30.8:
Same incorrect rendering of the Blend objects.Illustrator 30.7:
Illustrator crashes while working with/opening the document.Illustrator 30.6:
Illustrator also crashes with the document.
Important observation:
The problem specifically affects Blend objects whose source paths were created with the Paintbrush Tool.
Other normal vector objects, colors and strokes remain largely correct.
Expected result:
The Blend objects should display exactly as they did when the document was originally created and saved.
Actual result:
Blend objects based on Paintbrush strokes are recalculated/rendered incorrectly, producing wrong colors and stroke appearances.
In some Illustrator versions the document also causes Illustrator to crash.
Impact / Severity:
This is not only a visual rendering issue.
The affected AI document is a production file and is currently no longer usable for normal work.
All Blend objects based on Paintbrush strokes are displayed incorrectly, and attempts to continue working with or saving the document can result in Illustrator becoming unresponsive or crashing.
The document worked correctly approximately two weeks ago and was saved without any known errors.
At the moment I cannot reliably edit, save or continue working on this file without risking further damage to the document.
This is therefore a production-blocking issue and potentially a data-integrity problem.
I can provide:
- screenshot of the correct appearance
- screenshot of the incorrect appearance
- crash reports
- the original AI file if required
Environment:
Windows 11
Adobe Illustrator 2026
Armand Molders
shared this idea
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Ja, Armand, bitte stelle die Originaldatei zur Verfügung, die du ursprünglich gespeichert hast. Sende sie privat an sharewithai@adobe.com (gib dabei bitte den Link zu diesem Bericht an, damit er zugeordnet werden kann: https://illustrator.uservoice.com/forums/601447/suggestions/51707821) oder hänge sie an einen Kommentar an, falls es für dich in Ordnung ist, wenn sie öffentlich sichtbar ist.
Bitte klicke außerdem unbedingt auf die Schaltfläche „Bericht senden“ (Send Report), wenn Ai abstürzt, und gib deine E-Mail-Adresse an (du kannst auch den Link zum Bericht in das Kommentarfeld des Absturzberichts-Dialogs eintragen) – das hilft uns sehr weiter.Yes, Armand, please do provide the original file that you saved originally. Send it to sharewithai@adobe.com privately (in this case please specify this report’s link for tracking, https://illustrator.uservoice.com/forums/601447/suggestions/51707821) or attach to a comment if you are OK with it being public.
Also, please DO click the Send Report button when Ai crashes, and please mention your email (also you can put the report’s link in the comment filed in the crash reporter dialog) — these do help.
