HEATFS rounds broken?

I’m shooting the default HEATFS round for America’s M1A1 HC, and the leopards are GENUINELY eating my rounds somehow, like the round pens, clearly, but for some reason it does no damage. Also, for the M1A1, the spaded APFSDS (the one at the end of the ammo line inside the modifications), I shot at a t72, and the round PENS IT PENS THE WHOLE TURRET and SOMEHOW the round non pens while penning. Here are the files below for those shots; I only have two bc im not a goblin and saving every hit file, but for the Leopard this has happened 8+ times now.
germ_radpanzer_90_105mm_m774_219.53.blk (1.4 KB)
uk_challenger_2_lep_120mm_m829a1_255.6.blk (1.4 KB)
wtf gaijin.blk (4.6 KB)

It’s probably the heatfs getting stopped in the composite armour, so it pens some of the armour but gets stopped midway through. Heatfs is also dodgy as hell

Probably, but in replay and in-game it just did nothing, like as if it hit an invisible barrier right before hitting the tank

Here is another example, not of the HEATFs but with APFSDS rounds against russian t90/80m (Storm Watch or whatever that update was), two from HEATFS and two from APFSDS. Maybe Gaijin nerfed America, or they just don’t play-test their game enough to know abt this (let alone at all). Inside the file, it shows it penned but did nothing; in GAME it showed I COMPLETELY destroyed the breech, yet he was still able to fire and kill me, like ig bro. Fix this d*mn game already bro. (yes I’m censoring cuz “family friendly” purposes)
ussr_t_80ue1_sm_120mm_m829_66.65.blk (1.9 KB)