Alex stuttering in latest Numbers update

I am running the latest numbers update on Yosemite and am having an annoying problem with Alex stuttering and interrupting important information. When I'm moving across columns and he is reporting the header roes he will begin to speak the title of the header, but then stutter and begin saying the title over again, interrupting himself. e will start and stop several times, but never completely say the title of the header. This might sound like a picky thing, but it is resulting in me not being able to no which column I am inputting data into and this is a giant spreadsheet so I really need to have all data reported appropriately.

has anyone experienced an issue like this, and if so is there a fix?

I have only been regularly using Numbers for a few weeks for my job, so I can't say for sure if this is a new issue with the latest update, but I will say that I didn't see it until the update.