I think the roll ranges for flat health regen on Grand Rhythm of the Tide blessing in Ending of the Storm needed to be adjusted.
Often i find you get a better % incr health regen roll and a worse flat + Health Regen roll by some margin sometimes. It will mean doing math / scaling differently for the flat health but you cant have an outcome of a higher % roll with lower/worse flat result.
so something like the following
%Regen +Regen
120-128 12
129-137 13
138-146 14
etc until
192-200 20