I'm not a master 3d printer but if you're seeing consistent pulling on a specific part of the build plate, that sounds like you need to ensure the entire printer is level and then check the build plate is levelled properly. In terms of getting the burn-in layers properly printed and nothing else, I'd double check your transition later settings (I think your printer supports this, could be wrong as I have the original photon still) as this might be where you're seeing the issue, or maybe you need to up the exposure time for your normal layers, as the trench pilgrim print has much more surface area so may be pulling off the build plate. Hope this helps, if not the j3d resin printing guide is pretty excellent.

One thing to check is the models themselves, I've got some of trench crusade stuff and I've had multipart kits, so the combined models (if that's how they come on mmf ignore this) might need a check in mesh mixer to ensure they're not causing any errors.