[GRO] Toddler milestone 'Max movement skill' won't complete

In toddler skills, if you reach level 5, you still don't have all the milestones from that period. Even if you reach level 5, you won't unlock "learned to climb stairs"; you have to undo the skill and reach level 5 again. It's the same with thinking - reading. Please fix this.

Edit By Crinrict: Added Tag to Title, Adjusted Title