I had a problem on my website Labo.Marketing. On this website, I sell a subscription product. My members pay using the ThriveCart shopping cart and are then added automatically as new members in the Wishlist Member plugin (due to an integration between ThriveCart and Wishlist Member).
In theory, that's how it's supposed to work. The member pay and is automatically and seamlessly added as a new member in Wishlist. However, after doing some testing I realized it wasn't working.
After contacting both Wishlist Member and ThriveCart support and doing a plugin test, it was revealed that WP Defender is the plugin causing the problem :
When WP Defender is activated, and a new member purchase, simply nothing happen related to wishlist (no new member created).
The Wishlist member team told me that some security plugins are messing up with the Wishlist Member's API.
I had to deactivate WP Defender to proceed with my launch.
Now obviously that's only a short term solution, cause I don't want my website less secure because I had to deactivate Defender because it messes up with my membership creation process.
Also, since Wishlist Member is one of the most popular membership plugin out there, I thought you'd want to know and fix the incompatibility as quickly as possible.
Please let me know how I can solve the problem (or what you need me to give/tell you), so both plugins can work properly together.