Apple Watch fitness activities transfer issues

I’ve recently bought new iPhone (14 pro max) and days earlier new Apple Watch (SE)

before this I had iPhone SE 2 gen and Apple Watch 1 gen both working fine up to migration of the data.

before transferring both old devices to new devices iCloud back up was in place. Nevertheless after transfer most of my workout and activities history partly was missing in new devices and was starting from may 5 of 2023. I have followed the instructions how to back up to MacBook and after that both missing data on old phone was restored with minor issues but new phone has missing streak days (almost 750 days).

old phone has missing data but with errors like 2000 days achievement shows June 13 of 2023 whereas it was reached long time ago and the date is way later than the next achievement of 2250 which was reached on November 11 of 2021. And longest move streak indicates that earned days are 2001 days ending on 14/06/2023 and my current streak is 2640 days.

in general the start of activities is in September 9 of 2015.

how this can be fixed?