High quality press exports not working correctly

I would like to report what appears to be a export/rendering issue in Illustrator 2026 (PNG, JPEG, PDF, etc).

Issue:

• Vector artwork that exports sharply from Illustrator 2025 appears noticeably softer, jagged, or degraded when exported from Illustrator 2026.
• The issue is even when using working vector elements, icons, and small graphic details.
• The same artwork, assets, and export settings produce a sharp and clean PDF when exported from Illustrator 2025.
• Exporting the identical file from Illustrator 2026 results in visibly lower-quality rendering.

Additional observations:

• GPU Performance was enabled during testing.
• The issue persists at multiple zoom levels.
• The artwork consists primarily of vector elements and EPS assets.
• PDF exports from Illustrator 2025 display correctly, while Illustrator 2026 exports show degradation.
• In some cases, PDF exports from Illustrator 2026 also appear to handle artwork differently than previous versions.

Because the same file exports correctly in Illustrator 2025, this appears to be a regression or rendering/export issue specific to Illustrator 2026 rather than a problem with the artwork itself.

Thank you.