Objects keep moving themselves after i log back on

Hello again, sorry to be so needy on this forum but i keep running into problem after problem with my adobe animate cc program. The problem i'm having now is that symbols seem to be mis-aligning themselves after i've already put them into place. For example, I'm using keyframe caddy for mouth animations and had originally moved all the mouths/lower faces into the correct position where they correctly line up with the rest of the face, however after i've finished animating a conversation, I go back to see that some of the mouths are off center so they lines don't connect with the rest of the head like they should.  I once experianced a similar problem when i was using the free transform tool after double clicking the symbol to move it and realized i was changing its set place in relation to other objects so i stopped that and though i had the problem solved. Now however, i'm having to use free transform to go back and correctly align the symbol(after only clicking them once and not going into the actual symbol) after each few seconds of animating. They work then but i don't want to have to keep going back.

  I hate to ask but also is there simpler program for 2d animation out there? I've learned alot about using animate cc but it seems to require so many little technicalities that keep throwing me for a loop. All i want to to is get my project finished.