Changes in PDF Editor are not saving

No están funcionando los cambios al PDF, ya tenía problemas con las imágenes en estilo cuadrado, ahora no deja cambiar textos, quiero colocar la palabra conclusiones y vuelve a la palabra que e copiado antes.

No mantiene los cambios solicitados:

Hi Urdaneta_Melissa, 

Thanks for reaching out to Jotform Support. I cloned your form and tried to replicate the issue, but the change I've made in PDF Editor is saved. Did you encounter the below screenshot and clicked on the 'Yes, Proceed' button? If so, try to make the change again, then go to Form Builder and back to PDF Editor. And if the pop-up shows again, don't click on the 'Yes, Proceed' button.

Also, try to change the text from the Heading Settings.

Give it a try and let us know how it goes.