Filename fullstop deletes

I use Fresco a lot with filenames that often have a full stop in them, ie Artwork 3.15. When I finish up and export the file, it often loses the part of the filename from the fullstop on, so Artwork 3.15 becomes Artwork 3 - and then if you drop your cursor in there it will often delete the entire line of text. If that could be looked at it would be great, because its very frustrating when working with large volumes of artwork. Thank you.