Glyphs don't work on PS since 27.6.0

Hello Adobe Support Team,

I would like to report an issue with the alternate glyphs of a typeface in Photoshop 27.10.0.

This functionality worked correctly up to version 27.6.0, but in the current version, some alternates no longer work as expected. Ex: Ligatures work, but different version of characters don’t.

I have performed the following tests:

• Illustrator: Alternates work correctly with the same font.
• Photoshop 27.10.0: Some alternates are not applied correctly, and the original glyph appears instead of the expected alternate.
• Manual glyph insertion: When attempting to insert certain alternates through the Glyphs panel, the original character appears instead of the expected variant.
• OpenType features: The Standard Ligatures option is disabled for the affected font, although it is available and can be enabled with other fonts.
• Copying and pasting from Illustrator: If I apply an alternate in Illustrator and then copy and paste the text into Photoshop, the alternate is preserved correctly.

These tests suggest that the issue may be related to how Photoshop interprets or applies certain OpenType features in the font, since the same font file works correctly in Illustrator.

Could you investigate whether this is a regression introduced after Photoshop 27.6.0?

Thank you for your assistance.

Best regards,