I did remove the volute housing and inspect. The pinwheel was securely attached and the impeller was free of debris and abnormal wear. I took it apart twice, both of which produced the same results after resupplying power. I removed the pump and replaced it with the original one. I will try running the Bubble Blaster in a bucket of water to see if the issue still exists. I can send a video, or proceed in a different direction, pending your guidance.
Thank you,
Randy