After april update, all plugins where used some like this:

object CanLootEntity(BasePlayer player, MixingTable table)
{
    Unsubscribe(nameof(CanLootEntity));
    object hookResult = Interface.CallHook("CanLootEntity", player, table);
    Subscribe(nameof(CanLootEntity));
    if (hookResult != null) return false;
}

have problem: StackOverflowException: The requested operation caused a stack overflow.

Subscribe, Unsubscribe don't work correctly?