Actually, not that I know of. The problem is that the two plugins are using 2 different versions of select2. In your case the Paid Memberships Pro version of the script was being registered first. The way it works, ACFs later registration of a different version with the same “handle” is ignored. If ACF’s registration were to run first then the other plugins registration would be ignored. What order they happen in has a lot to do with the order that WP loads plugins, and this can be effected by unintsalling, installing, activation and deactivation of plugins.
