Go back to your original audio. Try using Noise Removal with the “Sensitivity” setting at around “8” and the “attack/decay” set at 0.0. The “Noise reduction” setting will probably need to be set lower than you had it before.
Experiment with the “Noise reduction” and “Frequency smoothing” to find the best amount of noise reduction with least amount of “damage” (wobbly metallic bubbly sounds) to the audio that you want to keep.