According to a Yahoo Japan/FNN report, XG producer SIMON, identified in the article as Junbo Sakai (39), was reportedly rearrested on suspicion of cocaine use along with three others, including an Avex employee.
The report says the four were already arrested in February at a hotel in Aichi on suspicion of possessing cocaine and marijuana. It also says urine tests showed positive results for illegal drugs, and investigators suspect the cocaine may have been used while visiting Osaka and Aichi during XG’s live tour. Police also believe it may have been habitual use rather than a one-time incident.
Obviously this is still being reported as an allegation, not a conviction, but it’s a pretty serious development.