Doesn't seem so but can't say if it's correct or not. I've found it easier to make an earlier savestate of a point that you are likely to rewind to so that you can reach the closest point in case you mess up, play it the movie back up to the point where you want to rewind at, then utilize rewind where you wish to use it at. Although, you will need to enable the Rewind function first. For some systems/games, they use a different size for save states so you will have to check the boxes for them.
You go to "Config -> Rewinds & Save States..."
You'll be greeted by this:
https://www.dropbox.com/s/1jj7yjqo5e3pprh/RewindSaveStatesConfig.png?dl=0
Under "Rewind Frequency", check the options that apply to the system/game you are using. I recommend checking the other 2 options as well for safety's sake. I already have "Medium Savestates (256 - 1024KB)" ticked as I use it for my GBA TASes.
