Laser not modulating

4040XE Laser not modulating using fill mode. Was working fine stopped modulating in middle of job. Laser just stays on and will not shut off at appropriate times. Does fine using line mode. Switched USB ports, shut off computer and restarted, unplugged laser and plugged back in, installed ver 1.1.03 and went back to newest ver 1.1.04 when that didn’t work?

Ortur 20 watt not a 4040 XE CNC.

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