Opinions Needed On Possible 2017 Indiana Quarter Error ( Not Cuds)

I've been coming across tons of the newer 2017 Indiana quarters mostly from the local grocery store. I go there almost every day before work and always get change back from shopping. I get at least one, if not more as change almost every time in the last month or two. Needless to say I've seen a lot and have quite a few with Cuds in various places including what seems like the most popular, over the rifle the guy all the way to the left is holding over his head. This one however has an issue I have yet to see on any of the newer State Quarters (obviously doesn't mean it doesn't happen) and I almost missed it completely. After seeing this I looked closer at other parts thinking if this is caused by a certain reason then there usually should be another sign of it somewhere else on the coin and I found exactly what I was looking for. I was thinking possible double die (prob wishful thinking) but I would appreciate some input on what the community has to say. The first issue I saw was on the K at the end of the word Clark on the reverse and the second is what I can only describe as a second thumb on the previously mentioned figures right hand. It is def not a Cud. It follows the exact shape of the thumb and is not PMD. I am sure of that. The quarter is in pretty good condition too. No major gouges or scratches. As always thanks in advance for the help.