Wow, thanks for the quick reply! I checked the collapse.js Java script installed on my website and it’s up-to-date:
* Collapse-O-Matic JavaSctipt v1.7.0
Under siteground-optimizer-assets is the latest version of the script in:
collapseomatic-js.min.js
* Collapse-O-Matic JavaSctipt v1.7.0
For some reason this hasn’t been updated in the cache (else we should see v1.7.0 in this link https://www.heiko-sieger.info/wp-content/uploads/siteground-optimizer-assets/collapseomatic-js.min.js).
I’ve again tried to manually flush the cache but somehow it doesn’t affect this collapseomatic-js.min.js script.
When I add collapse.js to be excluded from JavaScript Minification, collapse-o-matic works fine!
I leave it now excluded until this is resolved.
Many many thanks for solving this issue so quickly!