The last few updates have been approved in about 48 hours, so that would put this at Thursday morning ... I submitted it at 6 am Pacific time this morning.
I would only advise rolling back to a previous version as a last resort, because that involves deleting your data and anything that involves deleting your data is inherently risky.
How many songs do you need for your gig and how many of those have multiple presets attached? One thing you could do is, let's say you have "My First Song" with "Preset A" and "Preset B" attached. You could create a new preset called "My First Song Presets" that links to "Preset A" and "Preset B", then attach that new preset to "My First Song" instead of "Preset A" and "Preset B". But this would be tedious if you have more than a few songs to rework.
If the update hasn't come through 24 hours from now, please email me directly for more ideas.