Laser Power Issues

I have an Ortur Laser Master 2, 15W laser and I’m running the latest GRBL 1.1 firmware. My laser was working just fine earlier today, I burned a project with the laser set to 75% speed and 65% power. I didn’t change any settings, and now it won’t burn anything over 15% speed and I have to have the power cranked up to 90% or better. Even then, it doesn’t burn evenly like it was. I’m still using the same medium to burn on (cedar wood). Any thoughts? I’m so confused.

Here are my current settings:

Drop me a email at please describing the issue so i can follow up?

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