bw history on relay search is either missing or showing wrong timeframe

I was looking at https://metrics.torproject.org/rs.html#details/CB1816F95D43D6805230ED63326E88B0D4A7ABD7 and saw the following for the bw and weight history:

Juni 2023 vs. August/September 2024 for the last month of data?

Showing the last 6 months results in missing bw data while still having a weights history:

When checking other relays of that family I can see sometimes data for the last 6 months or even 1 year. However, that's stemming from some 2023 period in those cases.