Unable to select legal target

I was just playing a game where I was in a very commanding position and knew what I had to do to win, I had Unchained Twins - Aruha and Unchained Soul of Shyama on my field, I activated the effect of Shyama to target a card I control and destroy it and then optionally destroy spell/trap on the field, my intent was to target aruha and destroy him and my opponents Barrier of the Voiceless voice the moment at which I was trying to declare my target both Aruha and Shyama were highlighted as being legal targets but for some reason I was literally unable to select Aruha, I looked the gamestate over to see if there was a reason but there wasn’t. I’m extremely annoyed as this cost me the game and some ratings points which I should not have lost by any means. I would upload the replay as evidence of this but I don’t know where to find it so if anyone can help with that that’d be great.

Theres nothing we can do about it, as its a Unity game engine bug, and so we have to wait for the Unity devs to fix it. Its an issue where despite something appearing to be interactable, the actual button to do so within the engine cannot be interacted with. This is part of the reason were not using Unity for the next version of Omega.