Backwards SpO2 sensor history buffer

Hello I started this thread a few weeks ago.

https://forums.garmin.com/developer/connect-iq/f/discussion/267426/incorrect-spo2-values-being-reported

I need a response to my last query on this issue please:

I made a change to compensate for this, but someone with a Tactix Delta is still reporting zero or extremely low readings or garbage values.  Does the backwards history apply to all models or just some?