External CSS conflict with Olivero core theme.

Is this happening with every theme or Olivero specific?

@afagioli
I am getting same issue in Bootstrap5 → and Bootstrap Barrio →

But working fine in Claro theme which is core theme.

Thanks for confirming.
It works fine on most of D10.2 themes today

For an easier theme debug, implented remaining packages (Olivero fails only "bundle" but works with "core"+ "others")