@gidomanders Thank you for a quick response and heads up!
I have changed to generic mirror CDN now and hopefully we will see an effect of this change on our upcoming AWS bill! 🙂
We did a rebuild thumbnail which I had no clue was linked with these invalidations. We had 48 564 invalidations which has so far cost us $237.82. There where numerous similar invalidations over the past few months but not of this magnitude which caused it to pass by unnoticed.
I see no option anywhere in W3 cache to disable this feature and I originally thought it was only triggered by manual cache purge.
@gidomanders how is the updated feature of invalidations coming? Is there a way to disable invalidations permanently?
gsiroland: I had the exact same problem. Seems you cant “divide” one checkbox into multiple ones like that. I changed mine like so:
[checkbox TypeOfService "Service1" "Service2"]
And then it worked. Another solution (since I wanted to “place” the checkboxes myself) was this:
[checkbox TypeOfService1 "Service1"]
[checkbox TypeOfService2 "Service2"]
..and then also change the e-mail to:
Type(s) of Service: [TypeOfService1] [TypeOfService2]
Hope this helps.