Today during a game of Sweet Tooth, I landed in the hole with a HIO. I saw the HIO text, then immediately afterwards it said I went out of bounds and applied a +1 penalty, leaving me with a score of 2 for that very obvious hole-in-one.
My ping was around ~30 so I doubt it was network issues. Should be fixable by applying a check if the player has already finished that hole in the OOB code.