Tickets available not using woocommerce stock
We are still investigating the issue. It looks like the issue comes when WooCommerce is receiving IPN and PDT payment notifications are simultaneously. With that said that seems to be a WooCommerce issue and their support team would be the right one to address this.
Not sure if they know about this or even fixed it in recent versions, might be worth checking with them.
What you can do as a workaround is to disable either IPN or PDT in your PayPal account.
We have an article on how to set these up for our Tribe Commerce solutions. That contains the locations of these settings at PayPal.
It looks like WooCommerce is already aware of the issue:
And PayPal recommends that you rather have IPN than PDT:
Hope this helps.
Just wanted to share with you that a new release of our plugins is out, where we included a five minute delay to the attendee record generation that we think will solve the duplicated tickets issue you’ve been experiencing.
Find out more about this release → https://theeventscalendar.com/maintenance-release-for-the-week-of-13-january-2019/
We apologize for the delay and appreciate your patience while we worked on this.
As always, we suggest to setup a dev/staging site so you can make all plugin updates without disrupting the live site.
Please update the plugins and see if the fix works for you. Don’t hesitate to open a new topic if anything comes up and we’ll be happy to assist.