Take a look at the GIF attached and the document.
When the text object is selected, Illustrator fails to calculate the size and coordinates of the selection and uses the previous values.

1. Open the file and display both Transform and Control panel (I don’t know if Properties panel does the same, because it’s just completely empty for me — another bug)
2. Select the object with numbers — both panels display all zeroes (but Control has editable fields, while Transform have them disabled)
3. Select any of two rectangles the document — panels display correct size (150×450 mm) and proper coordinates
4. Select text object again — Ai displays the size and coordinates of the rectangle instead of the numbers’ values
5. Select both the numbers and the rectangle — again, when the text is included in the selection, Ai display the previous values

The object is a compound shape, made of a live text, with a Drop Shadow effect applied. If you hide or remove the effect — values get calculated fine.

If you release the compound shape and reapply the drop shadow — the bug vanishes — values get calculated fine.

The purpose of the compound shape (which one can create with the native Pathfinder > Make Compound Shape command, from the flyout menu) is to get a proper result with the 'bronze+shadow' graphic style you can check in Graphic Styles. If a text is not converted into a compound shape before applying it, Illustrator applies it only for the first character, because it treats any text as a 'group' of characters, instead of a single compound path / shape.

Reproducible on Windows for 26.5.1 and 27.1.1