movie / title is an invalid variation for a movie

[pegasus32]

I had listed 43 variations of blu-Ray movies with no problems. When I tried to sell them for 5 for $20.00 it would not let buyers request an invoice I assume because I had free shipping. Now I am trying revise the listing with varied pricing and it will not let me update. In bold red letters it says movie/TV title is not  allowed as a variation specific. I contacted ebay , no help. 

[shipscript]

@snakesnlizards 

Yes, it appears the VHS category is no longer supporting variations, whereas there are no problems listing DVDs as variations.  Perhaps the inventory is now smaller than before or that VHS is more of a "collectible".