The striker sat out several matches while disciplinary measures were considered, although he also returned to France for personal reasons.
The 25-year-old returned to action in Saturday's 1-0 loss at Dundee United amid an injury crisis, and he will remain available to manager Jim Jefferies after the club issued what is understood to be a final warning.
"This was a confidential matter between player and club," a Hearts spokesman said. "That matter has now been resolved."
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Source: Team Talk
Source: Team Talk