Keep Having DNS & Domain Linking Issues

I keep one of my domains that I used for years on there to ensure secure forwarding. The last time I posted this, some helped, one told me to wrote CSR which takes forever and rarely gets anything more than a cut and paste response. The DNS error is 100% on Squarespace's side. The field seen in the screen in red does not exist on the Namecheap side. (bobbyford.io)

Secondarily, not related to the first issue - a totally different domain (fordcreatorcoaching.com), as seen in the other two screenshots, I got an email that said the domain is connected when in reality, its not connected. When I first set this domain up, it took longer than normal to connect. When I checked the Namecheap settings, I noticed my cut and paste on one of the settings was wrong. I disconnected the domain and reconnected, ensuring all the cut and pastes were correct.  

Lots of things I like about Squarespace, especially with Squarekicker, but the mobile issues (which are many) and the adding the domain issues (if you go through Squarespace's easy connect process, can't add DKIM, etc ... for email on the Namecheap side). 

The phantom DNS info not on Namecheap issue is recurring. Squarespace fixes it and it lasts for a bit, then return. Don't even get me started on how much extra time it takes to get a site mobile friendly. I really hope they start taking these long standing issues far more seriously. 

Hey there! I'm having the same issue on SqSp authenticating DKIM for my Google email.

One forum suggested changing the selector to: google._domainkey.yourdomain.com? 

But the chain ended and that selector suggestion sounds like a wildcard move.

SqSp support keeps telling me it's a Google issue and vice versa.

You mentioned that SqSp wound up being able to remedy the issue on their side in end. (but it did circle back and need to be rotated) ...

Were you able to get someone from SqSp on the phone?