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LM3150: Output Voltage turns off then back on off by itself, results in square wave on output signal

Part Number: LM3150


I am having an intermittent issue with our LM3150. Input voltage is +24v and the output voltage can be +7v to +15v at 3A. Sometimes the LM3150 will output full +15v and other times the output will shut off (evidence that LM3150 shuts off) and back on resulting in a +7v to +12v square wave. I have attached a screenshot of the LM3150 circuit with surrounding components. Please let me know if you have any thoughts. Case Temperature of LM3150 is cool and not warm. Thanks in advance. Oscilloscope screenshot below of +V_DCDC_HV.