Submissions cannot be called unless you rapidly press X button to call for the tap out. In general, the contact for running moves can be bugged. A spear will put you on the mat while your opponent remains standing and stunned.
@WWEgames I had some issues in game that I wanted to mention.
Special Guest Referee: Matches cannot end under Last Man standing rules or KI rules. I pressed every button and the fall could not be preformed leading to an endless match.
@BladeAndSorcery I came across a problem in game where if you give yourself all abilities in the sandbox menu, you cannot open your spells. This happened to me on the Quest 2 and 3S.