The problem with RX10 seems to be manifold. With us it is so that it works at the beginning. You can apply sometimes three, sometimes five instances of RX10 to an event. But at some point it doesn’t work anymore: you can’t add a new instance. Instead, the last instance is always opened in RX Connect. (As if you had never closed this instance.) You are then in an endless loop. The only remedy is to make the DOP effects permanent for the corresponding event.
That’s how it is with us. But I have also read other variants. There is a long thread about this here in the forum, where we lament our suffering. 
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