Version 2.10.5 of Paid Memberships Pro is out with a handful of bug fixes. These bugs have the potential to hinder sales, so be sure to upgrade.

Specifically version 2.10.4 included a bug in the Stripe integration that caused failed checkouts for subscriptions with a $0 initial payment. If your site uses Stripe and subscriptions with free trials, you will want to upgrade.
Please update Paid Memberships Pro from the plugins page of your WordPress dashboard. You can also get the latest version of PMPro here or version 2.10.5 specifically here.
The full list of updates in v1.2.3 is below
- BUG FIX/ENHANCEMENT: Fixed issue where the date/time of orders in the Member History table were sometimes off based on timezone.
- BUG FIX: Fixed issue where checkouts for subscriptions with a $0 initial payment were failing with Stripe.
- BUG FIX: Fixed the error that would occur if the
AUTH_KEY
andSECURE_AUTH_KEY
constants were not set (e.g. with Local by Flywheel).