ProRes RAW Proxies and Sequence Start Time

The first problem I am having is creating acceptable proxies from ProRes Raw footage. The project requires a change to the PRORES RAW Source Settings Color Space set to S-Gamut3.Cine/S-Log3. Any proxies created using the normal work flow will not create acceptable working proxies, therefore creating a new sequence from the clip after the color space has changed is the only way I am able to create proxies that are close to the same color. This is not ideal but what is needed to get the job done. I hope that Adobe will address the issue for ProRes Raw proxy creation or please let me know an easier way. 

While creating a new sequence from clip it doesn't appear that the sequence start time works properly when set to use first clip. I have had many different results but nothing consistent. Since I typically use templated sequences I don't know when this became an issue, but I do know that I have experienced the problem in 22, 23 and now beta. The most consistent result I am experiencing is that "Set as default for future sequences" continues to repeatedly turn back on.  This is becoming quite the headache. As stated earlier this is only a problem for me because of the ProRes Raw proxy work-around. 

System info
    Application: Premiere Pro (Beta) v23.1.0.63
    OS: macOS v12.6.0, RAM: 192.00 GB GB, CPUs (logical): 32