The issue with some packages, you installed any package recently then reinstall that, and then try.

Have you selected the Client Library Category inside the Adaptive From Container section?   https://experienceleague.adobe.com/docs/experience-manager-learn/forms/adaptive-forms/custom-functions-aem-forms.html?lang=en  

Flowable layout in the forms adjusts its length according to the amount of data merged into it.    https://help.adobe.com/en_US/AEMForms/6.1/DesignerHelp/WS92d06802c76abadb11a7f71129b8b00825-7fc9.2.html  

The field should be multiline and expand to fit. Also, the page or subform that contains the field should be a flowable layout. And make PDF dynamic.

Have you installed the Form Addon package? If yes, then follow the below page: https://experienceleague.adobe.com/docs/experience-manager-65/forms/adaptive-forms-basic-authoring/creating-adaptive-form.html?lang=en   If no then first install the Form Addon package and then follow the above page. Than...

I have checked your form and I created one sample static form with a field and rendered it with data that span 2-3 pages. It's behaving like this only, Field is breaking into different pages but there is a scroll bar in the field and all data is available on each page. I can see the whole data on ev...

Share your form @ (vkatoch07@gmail.com) will have a look.

https://docs.mktossl.com/docs/experience-manager-cloud-service/content/forms/adaptive-forms-authoring/authoring-adaptive-forms-foundation-components/create-an-adaptive-form-on-forms-cs/adaptive-form-json-schema-form-model.html?lang=en  

To add more Adaptive Forms using the Adaptive Forms - Embed component, select Form covers entire width of the frame option   check if this option selected.   https://experienceleague.adobe.com/docs/experience-manager-cloud-service/content/forms/integrate/services/embed-adaptive-form-aem-sites.html?l...

form1.TextField2::exit - (JavaScript, client) floatingField.rawValue = this.rawValue.charAt(0).toUpperCase()+this.rawValue.slice(1);