I had a close call. It hard to see, but the squarish discoloration in the middle of the stuck print is a hole in the FEP. There was a little leakage, but not severe. The stuck print cured enough to cork it up. This is on a Photon Mono X, so the volume of spilled resin could have been nasty.
I did mar my polarizing filter a bit cleaning cured resin off of it, hopefully it’s not an issue