ACF Pro not working @Siteground. Cache issue in ACF plugin

On my server at Siteground I am using SG optimizer.

I have to do a complete manual flush of the cache for every change to a post or a new post. Without this manual flush, changes will never be visible on my site.

The problem is that an item added within ACF Pro (with a registered post-type) in the WP-admin looks like it’s not giving a signal to the object-cache. That way there is never a cache flush like when you save a wp-post or page. Is there a way to achieve the same result as when we’re saving a wp-item?

I already made a support ticket. ACF confirmed the issue, but has no solution at the moment:

Patrick Mwange replied
Hi there,

Thanks a bundle for the clarification. I now understand the challenge with SiteGround.

Unfortunately, I’m afraid there is currently no option out of the box from the ACF end to resolve this limitation. I’m going to share the same with the dev team as well for further consideration.

In the meantime, I would recommend that you also open a forum thread on the same. Someone else may have implemented a custom solution that might.

My apologies for the inconvenience.

Maybe someone has a possible solution/workaround already?

Update from SiteGround:

Object Caching works as designed to and it is up to the plugin devs to play nice with it. If they don’t know how to work with persistant object caching like Memcached or Redis I am afraid that there isn’t much we can do about it but to disable the caching or to switch to a better plugin than ACF Pro.