Concerning SH₀ES Data: Discrepant W0,VI Absolute Magnitudes for Cepheids in the Keystone Galaxy NGC4258

SH₀ES $VI$-band photometry for classical Cepheids in the keystone galaxy NGC4258 yield discrepant absolute magnitudes. Specifically, the 2016 and 2022 published SH₀ES Cepheid data for NGC4258 exhibit a substantial offset of Δ W0,VI0ᵐ.3. That adds to a suite of existing concerns associated with the SH₀ES analysis, which in sum imply that their relatively non-changing Hubble constant for nearly twenty years should be viewed with caution.