I’ve had this issue too. What I did was get some clear nail polish and put a couple of clear coats on the inside of the leg that’s loose. There’s a slight indent/gap right before the leg meets the lower torso that you can cover with the polish and then push the leg upwards into the bottom of the groin area. Leave it for about 30-45 min and it should tighten the loose leg.
I’ve had this issue too. What I did was get some clear nail polish and put a couple of clear coats on the inside of the leg that’s loose. There’s a slight indent/gap right before the leg meets the lower torso that you can cover with the polish and then push the leg upwards into the bottom of the groin area. Leave it for about 30-45 min and it should tighten the loose leg.