Potentially. In general, not playing on a trip can affect your future offers because URComped bases your offers on a rolling average of your play. One trip with low or no play can bring your average down, but it really depends on the situation. The more good trips you have, the less impact one bad trip will have.
If you do not play on a trip that has already been comped, it can raise concerns for the casino and they might reevaluate your future comps.
There is no strict policy on this, but not playing on a trip that was comped based on your expected play could definitely affect your future URComped offers.