<p>I'm new to printing resin miniatures for Dungeons &amp; Dragons and most of my prints are successful, i.e. one or more miniatures print as expected.</p>

<p>However when I have multiple minis on the build plate the one in the middle works okay but the ones on the edges don't adhere to the build plate.</p>

<p>Should I limit myself to one or two minis in the center of the build plate? Or should it work and I just need to get my settings correct?</p>

<p>Note I'm using a Beam 3D Prism printer.</p>

You can definitely print full build plates of minis. You just need to find correct settings. If nothing sticks to the build plate - then you should increase bottom exposure time. Also check if the build plate is even. You can also sand your build plate a little bit to make adhesion better. Additionally, print with lower print speeds to increase success.
Finally, if your FEP is worn out and scratched or hazy, you should replace it.
I own a company producing 3D printing resins. We also write extensive printing guides from time to time. You can read more on finding correct settings in this
article
of mine.