Regression (~Aug 4): custom-shape author-set font sizes not applied on load — text overflows; standard shapes fine

Posting to confirm whether others are seeing this and to flag it to the Lucid team.

As of roughly 2026-08-04 (~18:30 EDT), custom shapes from our private editor extension started rendering with the wrong font size on load — the text renders larger than authored and overflows an otherwise correctly-sized shape (the shape ID overlaps the title, names spill out of the box). It hit every document and every user on our account at the same time.

What makes this look like a platform regression, not our extension:

• Our extension is unchanged — last published version is 1.0.21 on 2026-07-23; the Packages page shows nothing published since. No republish, no install change, no code change on our side.
• Editing any single field on the shape immediately snaps the font back to the authored size. So the shape definition is intact — the authored text formatting just isn't being applied on initial render, only on re-evaluation.
• It's specifically the font size, not the geometry. Our shapes use fixed, author-set point sizes for their text areas (e.g. 8pt ID, 11pt name). Standard Lucid shapes, which auto-fit text to the shape, are unaffected — which is exactly the tell: anything relying on author-time text sizing breaks; anything auto-fitting is fine.

Repro:

1. Open a doc containing custom shapes with author-set (fixed pt) text → text renders oversized and overflows.
2. Edit any one field on the shape → it snaps to the correct authored size.
3. Drop a fresh instance from the custom library → same, until a field is edited.
4. Control: a standard flowchart shape with auto-fit text renders normally.

Questions:

• Is anyone else seeing custom-shape / author-set font sizes not applied on load since ~Aug 4?
• Is this a known regression or a recent rendering-engine change? Any timeline for a fix/rollback?
• Recommended workaround beyond touching each shape to force re-evaluation?

Environment: Lucidchart Editor, [browser + version], macOS, Enterprise plan, private editor extension (custom CustomBlock shapes with fixed-point text).

Thanks — happy to provide a sample doc or extension details to anyone from Lucid who picks this up.