AR 600-8-2 covers flag actions. If you received an Article 15, the flag will remain in place until the entire punishment is complete including suspensions. The flag should be lifted when the issue is resolved. If you were only instructed to complete corrective training, it is likely your chain of command simply forgot to lift the flag as a result of the pending investigation concerning the initial offense. Speak with your 1SG or CDR and explain the situation. They will either lift the flag or explain why it has not been lifted.