You will be pleased to know that your dog can safely eat ube after looking at so many different pieces of information.
Ensure the ube is cooked- steaming or boiling it is best- and that your dog only consumes a small amount.
To be honest I would say the same thing about sweet potatoes or yams.
In the US and UK it can be difficult to get hold of fresh ubes so some people use an ube extract which is a powder in a jar.
There is a possibility that this extract contains a substance that can be toxic to dogs when present in very high amounts.
Later I'll go into more detail about that.
Lets start by going back to the basics.