Paper flight progress strips [1] have famously resisted replacement, even though they keep trying [2].

Every 5 years or so, a different publication will write an in-depth story about how difficult they are to replace, because nothing works nearly as well, and the controllers go back to using paper every time a new system is trialed. I think I've even read about them in a cognitive psychology textbook at uni.

[1] https://en.wikipedia.org/wiki/Flight_progress_strip

[2] https://www.faa.gov/air_traffic/technology/tfdm/efs