MIX.R reward did not reset correctly after reloading a previous save, causing me to permanently lose 3,000 Raw Science.

I am playing on PC. After completing a MIX.R defense, I looted the creature corpses on the ground and collected the 3,000 Raw Science reward from the top of the MIX.R.

After that, I realized that I had forgotten to PEEP the Wasp Worker to unlock its Creature Card. Because of this, I reloaded an earlier save from the moment right after I had completed the MIX.R defense.

However, after loading that save, the MIX.R was no longer in its broken/reward state. There was also no 3,000 Raw Science available to collect from the top of it. The MIX.R could not be interacted with either, so I could not start the defense again.

As a result, I permanently lost the 3,000 Raw Science reward.