I'm using CiviMobile on CiviCRM 5.35.0 under Wordpress 5.7. I can view just fine, but it won't save an edit. I don't see anything in the log.
I ran the CiviMobile Checklist and it says the "Rest path is not correct" and the "Rest url is not correct". It shows the Rest path is "/wp-json/civicrm/v3/rest" and the Absolute rest url is "https://<domain.org>/wp-json/civicrm/v3/rest. I believe those are correct and I can manually run things like: