Wes Scantlin -- Bench Warrant Issued for Puddle of Mudd Singer's Arrest

Puddle of Mudd singer Wes Scantlin is a wanted man ... again ... TMZ has learned, another bench warrant has been issued for his arrest.

Scantlin was scheduled to appear in court Thursday for a progress report in his ongoing coke possession case, but he failed to show up. A judge then issued a bench warrant for his arrest Friday.

Similar bench warrants have been issued for the singer over the last year in the same case.

Scantlin pled guilty to felony drug possession in 2012 and but the judge agreed to delay his conviction for 18 months, during which he was ordered to enroll in a drug program and keep the court informed about his progress. Apparently it's not going so well.

Pretty funny ... considering we got Scantlin out in L.A. Thursday night, and the guy had pretty much no idea what was going in with the case. Well, now you know.