Unable to fill out PDF form in Microsoft Edge: Text disappears

I'm trying to fill out a PDF form in Microsoft Edge. First, I tried copying and pasting text from Notepad into a text field in Edge. The text pasted correctly, but then disappeared when I clicked outside the text field to move onto the next text field. I tried typing the text instead of pasting it, and that worked. The text stayed even when I clicked outside the text field, except for one problem. I need to type a lot of text in one field, and it took me a long time. I had to click outside the text field to do something. The text I had already entered stayed, but when I entered more text into that field, the new text disappeared when I clicked outside the text field. Please help me enter text in a text field by copying and pasting, or stop the text from disappearing when I return to the text field to add more text.