Bug in the Ultimate (3 coins) achievements for Meldown and Subzero

[Shuiniem]

I get the reward for completing the level, but even though I beat it with all 3 secret coins (as shown in the screenshots), the Ultimate achievement does not unlock for Meltdown or Subzero.

TEST (Meltdown):

Icon (Normal and s.c.)

Icon (3 secrets coins)

[lil2kki]

seems it needs additional support. honestly i even was surprised by game tries to support such unexpected changes