@magma1447 , I've the same problem with adopted very old caches -maybe you could check (and comment), what you've done for Tshio.
I from this ticket understand the calculation behind, but this makes the graphical representation of my karma not very expressive, i.e. it does in the current not show an interesting view.
When the calculation itself is correct (for each month), it would be a good extension, if one could shrink the carma graphic to shortened time frame til now (with a moving window). What do you think?