Just updated to 4.3 and have lost several character animations

Hi. I couldn't see this posted any where else on the forum. I've been creating a game in Stencyl for the last couple of years (I don't get much free time) and have just updated to the new version. Most of the game is running fine, however on my two main characters I have lost several animated sequences that took a very long time to perfect. I'm hoping this is an easy fix and they are still recoverable. Can anyone advise?

Resolved