Crimson Nova the dark cubic lord bug

  1. Bug description
    [Describe what the bug is in your own words.]
    Sometimes, randomly, the effect of the monster at the end phase doesn’t trigger. I have checked the field and nothing prevents the activation. it just doesn’t activate.

  2. Bug reproduction steps
    summon crimson nova, go to end phase. it’s completely random so it could be difficult to reproduce

    [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.]
    the monster should deal 3000 damage at the end of the turn to both the players

  5. What OS are you using
    [Windows-10 / Linux / Android]
    windows