hmm our app never uses any custom coding at all all you do is connect your funnel to the app through a little code once and forget about it.
Generally, my question was is your funnel working already without the apps? if it isn't then it's a CF issue should contact CF support before connecting our apps
But if it works, we can then move to the next phase which is checking for any 3rd party codes, I assume you are trying to use CF protools plugin or something along side our apps on the same order form which is quite impossible in most cases.
Please do not confuse our apps with any custom codes you get from 3rd parties, our Apps never conflict with Facebook Pixel or any other custom codes you might have, but in case you are using two different codes in order to modify/improve a single area it's going to pose an issue certainly...
Your issue as far as I can see is so easy to solve, simply remove any 3rd party codes you don't need.
hope that helps!