Your existing PPS reserve value will be carried over and you can use the existing value for your following PPS Solitaire requalification.

When SQ rolled out the new reserve value logic, some people didn't get the reserve value acknowledged and SQ claimed that PPS reserve value is not PPS Solitaire reserve value.

The issue has been fixed and when I qualified for PPS Solitaire, my PPS reserve value became PPS Solitaire reserve value.

Also: you become PPS Solitaire for the remainder of your current membership year plus full 12 months. I requalified for PPS in June 2021 and became PPS Solitaire in August 2021. Status is good till June 2023.