I’m not sure when this conflict started as I have had both ACF Pro (via Intense shortcodes) and Fresh Custom Code plugins working together for some time (2years+).
An ACF Pro update has triggered a script name conflict within Fresh Custom Code which prevents the admin user from accessing the FCC script setting page “run on page url” drop-down field. Thereby preventing us from choosing “which page” the Fresh Custom Code script should run on.
When the FCC admin form loads you quickly see the “Page name” menu field element appear and then its gone at end “on-load”. The select menu flashes at super wide width (which isn’t normal) and then vanishes, so you cannot choose a page or change any existing URL set.