Keep being not able to move as Malphite in Summoners Rift

I have been getting stuck in places that I don't think i should while playing Malphite. For instance in my last Ranked game in the last team fight of the game I was stuck between our inhibitor and our inhibitor turret. Also, during the same game while between my tier two tower top lane. Its just Malphite too there hasn't been this issue with any of the other champions that I have played today. I was just wondering if this was me only. I thank your for taking the time to helping me in advance.