Now this is crazy but I have escapees too. Strange thing is I walked over to my dogs aluminum dog bowl and there were 5 crickets in it! Alive could not get out. Tethered was some dog food residue in it but they were attracted to it !
I gule gunned j-cloth to the lid as the vents are too big ans little crickets can get out.
Have you tryed sticky paper/tape with food in the middle so they walk and get stuck lke the fly traps xx