shareprice calculation

Hi Everyone,
I am looking at the share price dashboard of yv-Curve-ibEUR on where there is a double update on the 09.10.2021 06:00:00 from 1.0 to 1.0000035 and same day 12:00:00 to 1.0000060 whereas in the on-chain log data I am analysing, I cannot find any log or trace related to this change.
I can find 4 logs at 2021-10-09 02:31:13+00 that might be related, however that does not explain the double update as the subsequent log is days later 2021-10-20 17:49:35+00.
How could that be explained?
What am I missing?

This forum is for governance and this would be a question best asked in our discord at #dev.