Items Change Stats. Bug?

I recognized for two items that they change there stats during playing.

1.) Scorn of the Earth: The unique aspect changes from 50% to 49%.
2.) Archon Faulds of Interdiction: The legendary aspect changes from 10% to 9%. Additionaly, the barrier generation changes from 23.4% to 23.3%.

proof : h ttps://ibb.co/t3PMJTJ (remove space, otherwise i am not able to share the proof)

Some mythic items also lose some minor stats on non-GA affixes. For example Harlequin Crest has 19.9% CDR and Tyrael’s Might has 19.9% Damage reduction instead of the normal 20%.

how is this rounding nonsense STILL an issue after over a year? there are so many things that do this constantly…