Hi, you can find a workaround I posted here:
Add-On not working
WP Developer
6
Reputation points
I have added new add-on to my app. When i add languages, which my add-on would support and then I click on language to add, add-on details, then page is loading for infinite time. I have raised ticket for this too but just checking if anyone else facing this issue and if this is any workaround for this.