Is there a patch or workaround for not seeing the mastercrated feline gear after getting all the diagrams?

depends, are you unable to see the gear in your inventory after crafting it or do the diagrams fail to appear in your personal craftingdiagramcollection or do the diagrams fail to pop up when talking to the smith?

I can craft Superior Feline Gear. I completed the treasure hunt for diagrams. They wont show as an option in crafting menu when I talk to smith or in personal crafting collection

Hmm...just to be sure that it's really a bug you should talk to a mastercraftsman. For Weaponry that would be hattori in novigrad or the quartermaster of the nilfgaardian camp in white orchard. and for armor that guy at the market place in oxenfurt or the lady smith from skellige that you can find in crows perch. mastercraftingdiagrams usually only show up in the smithingoptions when the smith actually has the skill to craft it. If it doesn't show up as craftingoption THERE try an older save. That usually fixes most problems,

The new patches introduced a filter option. Press "F" in the crafting screen, and choose "All".

Thanks for the quick reply. I have the filter set to all. Good suggestion as I can see how that would be easy to overlook. Good info. I have the griffin set at Master, working on Wolven and Ursine. I want the feline set for the grandmaster set bonus. I did a search and found that there is a bug for the feline set if the treasure quests get done out of order, like finding the chest before you have the quest. Was hoping for a work around. Next time I start the game fresh, I'll not go roaming around looking for stuff to do and do em in order.