My editor would not come up at all on both my sites. After several emails to support they got it working. One of my sites that uses a domain that is hosted by WIX stopped again. I was using Microsoft Edge. Using Firefox fired the site right up without incognito mode or clearing cache. Also while editing using Edge, I was unable to get a custom sign on light box working. Once again, no problem in Firefox.
My second site that uses a Domain hosted elsewhere wouldn’t let me sign in on my iPhone. I checked my DNS pointing settings and found I had selected “Stealth” mode instead of “Standard”. Stealth mode hides the WIX URL and the user just sees the Domain URL. Changing it to Standard fixed that problem but now the WIX URL is visible (not a big deal for me). At least it works. Hope this saves someone the lost time I spent finding these things out.