Articles talking about the reproducibility crisis focus on soft science where it is more likely to occur but there is at least one major hard science (physics) reproducibility crisis:

We are unable to reproduce measurements of the Gravitational constant.

Reproducibility - distinct from the claimed uncertainty by the experiments - has not advanced at all since the 1940's. This is unlike any other physical constant where precision and reproducibility has consistently progressed along with our technology:

https://en.wikipedia.org/wiki/Gravitational_constant

> Published values of G derived from high-precision measurements since the 1950s have remained compatible with Heyl (1930), but within the relative uncertainty of about 0.1% (or 1,000 ppm) have varied rather broadly, and it is not entirely clear if the uncertainty has been reduced at all since the 1942 measurement. Some measurements published in the 1980s to 2000s were, in fact, mutually exclusive.[7][30] Establishing a standard value for G with a standard uncertainty better than 0.1% has therefore remained rather speculative.