"Primathmech Alembertian" or "Hiyari @Ignister" can't tribute to activate its effect?

YGO Omega Bugs
1

  1. Bug description
    [Describe what the bug is in your own words.]
    “Primathmech Alembertian” or “Hiyari @Ignister” can’t tribute to activate its effect?

  2. Bug reproduction steps

    [Write the exact steps to reproduce the bug. Provide a replay code if you can. You can attach replay codes, or use a pastebin link or you can even use a spoiler tag using]

    Spoiler

    your replay code

  3. Screenshot OR error code

  4. Expected behavior
    [Tell us what should have happened when the bug occurred.]

  5. What OS are you using
    [`Windows-10]