Hello @dcreech
The issue has been noted as known issue and we are currently working on this . We will be releasing the update fixing the issue soon and we will let you know.
For the quick fix we are providing some CSS code, so Paste the below given CSS by going to Admin Panel > Appearance > Customize > Additional CSS.
.site-title:before, .site-title:after {
background-color: #fff!important;
}
Hope this helps.
Best Regards!!