I couldn't figure out how to "fix" it in calling the indicators so I just modified CumulativeCurrentVolume to work around the issue. Install this version of CumulativeCurrentVolume and use this snippet instead.
bidvolume = CumulativeCurrentVolume(1)[0]; askvolume = CumulativeCurrentVolume(2)[0]; Pressure.Set(bidvolume/askvolume);
1=bid
2=ask
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