How are you prepping the frozen rodent ?

my guess is something is off with the temp and activity.

You waht thst food hot! Not cooked hot but hot just as a live one would be. As someone suggested using the hair dryer or if you have a heat lamp.

Also as someone suggested use a plastic bag to keeonthe rodent dry and retain all its smell.

I soak mine mine in cold sink water for an hour. Then I warm my sink faucet as high as it goes and it sits there for another 25 min or so then I grab w tongs and hot dog roast it under the heat lamp for a short stint again you don't want to "cook" the rodent but you want it hot. The snakensenses heat.

Also witgle the rodent around by the snake make it act live and it should be zero issue.