Trying to resize a gif and Media Encoder is clipping the end off

Help! Ok, so I have a gif that's too big, but in proportion. I was able to downsize it to the correct proportion using the Animated gif option in ME, but in the original I have the last "scene" sitting there for a couple of seconds before it loops so it's readable. And yet when I converte it in ME, it cuts those last two seconds off. It clips it right as the last animation ends and it loops then. How do I make it not do that? Thanks.