We can mention here the
Michelson Morley_experiment where the scientific community failed to interpret the results of the experiment correctly (only after 20 years). simply because they held to theory of the aether too strictly. so instead of having doubts on the theory, they had doubt on the experiment itself (not accurate enough).
I think we can learn from that, that we should not attach too strongly to our current understanding, and not to crystallized our thoughts.