Loop Builder, sort by Advanced Custom Field?

Hi,

I am using the BeTheme Loop Builder, I am aggregating posts of a certain category.

I now need to apply "order by menu order", but as I also use advanced custom fields plugin, it seems, as if this doesn´t work.

Wordpress custom fields do not show up, if advanced custom fields plugin is installed.

Actually, I would need to sort by an advanced custom field which the field name "zeitraum-von", the date format is d.m.Y

As it is probably not possible to sort by that field, I thought about introducing a Wordpress Custom field "menu_order", which I could fill with numbers (eg. 20250423). I guess, then I could use "order by menu order". But, I Wordpress custom fields are not available once Advanced Custom Fields plugin is active.

Do you have an idea?

Thx in advance

Markus