Utility classes not included in the production CSS

[magnum]

I am developing an application using Rails, Tailwind 4, and deploying it with Kamal.

Gem versions:

rails 8.0.2 
tailwindcss-rails (4.2.2)
tailwindcss-ruby (4.1.3)
kamal (2.5.3)

When I run the application locally, it functions correctly. However, after deploying it with Kamal, the Tailwind CSS included in the image does not contain utility classes such as px-<number>, opacity-<number>, gap-<number>, h-<number>, top-<number>, and bottom-<number>, even though other similar classes appear to be present.

Here are the steps I have taken so far:

• Verified that all classes are used directly within the template files (e.g., building them in Ruby, etc.).
• Built remotely with Kamal using an AMD64 architecture.

here're the two different built files

tailwind-development.css.txt
tailwind-production.css.txt

Any suggestions?