I have two pages that share the same glide tables, “Page B” was created duplicating “Page A”, I added some new columns in the “Page B” environment but those new columns are not visible in the “Page A” environment, it is normal, or correct? If I need the new columns in both Pages, Do I have to create them in both even do the table is the “same”?
It depends.
If you add a non-computed column in one App, it should appear in the other App.
But computed columns will not sync between the two. If you add a computed column in one, and you need it in the other, you must add it manually.