I have configured about a dozen virtual sites in the Server app under Websites. It suddenly occurred that when I edit one of these websites (no matter what I edit), I click on Save and nothing happens. In the end, I have to click Cancel, and when I check back, indeed my changes have not been saved.
Any idea why this is so and how to fix this?
I've checked the access rights in
/Library/Server/Web/Config/apache2/sites, but they seem okay. Restarts didn't cure it either.
I'm running Server app 5.3.1 under macOS Sierra 10.12.6. The sites run fine.