thank you for the additional information!
We do have problems handling custom fonts at the moment, we're working on a fix as we speak, in the meantime please try import a project before applying custom fonts, sorry about the disruptions here.
Also we are aware of some sections not mapping 100% correctly, there is a larger effort to fix them one at a time, let me know if this happens a lot in your case and please send me a DM with your Relume project if you don't mind 馃檹