astra header problems

Hi guys. This is a great plugin and a huge step in moving things to amp.

I am testing it in a few sites with the astra theme and there are some issues, mainly regarding their new header builder and items disapearing both in desktop and mobile. Maybe its a simple thing, but out of my knowledge. It happens bot with the astra pro plugin on and off and if you can solve it for plain astra (without the need of the pro plugin), even better.
I’ve set up some examples below, if you need admin access to any of these, just pm or email me.

Example 1: astra 3.03 (no astra pro plugin, no fixed header), AMP & AMP Enhancer, using the old header builder.
OK in desktop. On mobile, the hamburger menu button appears, but menu colors change to white (I know it can be solved with simple CSS, but just to give you the overall picture).
Link: https://www.hipersites.pt/

Example 2: astra 3.03 with astra pro (new header builder active, fixed menu active, transparent menu active, mobile menu using the off-canvas), amp + amp enhancer, elementor pro.
On desktop the menu items disapear, leaving just the logo and, although the header is fixed, it remains transparent when scrolling down, with no menu. On mobile the logo appears but no toggle button and no menu.
Link: https://isq.blueserenity.pt/
You can see the same site in production, with amp off, here: https://es.isq.pt/

Example 3: astra 3.03 (no astra pro, new header builder, desktop menu fixed manually with css, mobile menu using off-canvas), amp + amp enhancer.
Nevermind the desktop version, made with css, but previously tried with astra pro and had the same issue as example 2 (astra pro now deactivated). On mobile the toggle button does not appear, same as in example 2.
Link: https://ctag.blueserenity.pt/

As stated before, if you need admin access, just let me know.
Thanks in advance and best regards
Alex