When opening sites built with Blocs 4 in Blocs 5, it does not recognize the CSS font color definitions, even though the CSS is correct. Even deleting the color and putting in a new one does not work. Everything is defaulting to “none” on preview and export.
Blocs 5 has an entirely new colour system with many great benefits. However, due to such a big change, you may encounter some global swatches that may not work correctly in Blocs 5, when you try to assign them to an element. Simply right click the problematic swatch in the Swatch Manager and duplicate it, now remove the original and use the duplicated version.
Thanks for the tip!