About the 0% flee rate
Picked up the "power up one pokemon" quest yesterday and completed it almost immediately. Got the Plusle encounter and it broke out of the first ball I threw at it and escaped. I was under the assumption that these encounters from research couldn't flee, and had never seen this before. Does this have to do with the most recent update?
EDIT: I found reports on reddit that there is a known bug where the research pokemon flees on the screen, yet then appears as caught in your bag (it happened with mew for someone). So that's what happened, for anyone (like me) who was unaware of this glitch.