Graphs are not deleted after FTP upload

[GeertLint]

Scherm­afbeelding 2025-02-14 om 20.25.05.png (85.98 KiB) Viewed 2981 times

Although I ticked the box “Delete File”, files are not deleted after upload.
I can of course delete them manually from time to time, but I hope someone can give me a suggestion how to make this work.
I already tried to delete the two events and enter them again, but without success.

[admin]

You are right, they should be deleted. I will test on my system an will come back.