I tested the update on two websites in a local environment before updating the live servers, and in both cases the update breaks the styles defined in custom.css.
I have read this post:
https://www.joomshaper.com/forum/question/46421
The proposed solution does not work for me. Apparently, the only valid workaround is to disable CSS file compression.
This behavior has not occurred with any previous Helix Ultimate update.
Why is this happening?
Thank you.