Hello,
I did this:
1) Create a test event with a banner.
2) Check the presence of the image with filezilla
3) Deleted this event from the site
4) Checked on the site that the event was no longer present
5) Checked that it was deleted correctly from the list of back office events (surprise it is in the trash)
6) Permanently deleted the event from the trash
7) Open Filezilla again
8) Found that the image has not been deleted
Note: I emptied the cache (WP Rocket) at each step.
The image url shows this:
wp-content / uploads / event-manager-uploads / event_banner / 2020/01 / Bord-de-Meuse-Verdun_17.jpg
Your answer therefore does not seem valid because the image file of the banners is not attached.
This, along with many other things, needed to be fixed.
Please inform me about the date of the next version of your plugin with the corrections made.
Regards
Serge