Vidgirl8

I am using Video Pad Pro version 2.41. This isn't about scrolling text. I never use that. This is about text that I want to display in a pop in and out for a second or two. It seems for the recent project I made, the most of them did not show up in the finished product, but one or two did.

Sometimes when I am using text overlays in a video, it causes a slight hic-up in video play. Like a slight stutter in the video that you can see. Sometimes the remedy for thus has been to remove the overlay and try to apply it again, but even if it's not in the same place the hic-up is still there. How can I get rid of this glitch? annomally? There are videos I need to use text in and when that effect happens it makes the video product look cheap and amateurish.