I added the lines requested by Webflow in my DNS manager (A, TXT, CNAME), but the root domain remains inactive. The A line is not taken into account by Webflow even though it is present in the DNS manager.
Double-check that both A records point to Webflow’s IPs (75.2.70.75 and 99.83.190.102) and that you’ve removed any old A/AAAA records. Had this happen on a client site and it only resolved once propagation finished (can take up to 48hrs). Also be sure the root is set as the default domain in Webflow Hosting.