Tribute Summon bug

YGO Omega Bugs
1

  1. Bug description
    Tribute summoning a card that requires 1 tribute as cost (lvls 5 and 6) cannot be summoned using cards that are treated as 2 tributes.

  2. Bug reproduction steps

    Try to summon any lvl 5 or 6 using cards that are treated as 2 tributes for a tribute summon.
    I tried to find some related rulings but had no success, also the cards do say “CAN be treated”.

  3. Screenshot OR error code

    Screenshot_3
    Screenshot_31919×1079 536 KB

    Screenshot_4
    Screenshot_41919×1079 559 KB

    Screenshot_5
    Screenshot_51919×1079 590 KB

    also tested with the earth Gaia.

  4. Expected behavior
    Be able to tribute summon lvl 5/6 using cards that cheat tribute costs.