Crinrict's Sims 3 Help Blog: BUG: Sims reset / jump out of actions

Problem

My Sim wants to do some interaction but shortly after he stands behind/in front of the object without doing the action
My Sim was at work but now he's suddenly back home
My Sim interacted with another Sim but after completion of the action he teleported several feet away.
...

Cause

Incompatible Mods
Corrupt Object
A reset order was either given manually or by the game. This can happen if the game errors out. Depending on when the reset happens they can have more or less severe consequences

Known actions that can cause a reset

Solution

Remove all incompatible mods/hacks from your game
Replace corrupt objects with new ones
Most resets don't have bad consequences. They are just annoying.
If the reset corrupted your Sim, moving out and back in might solve the problem. Otherwise moving your family to a new town, might be your only option.

Mods that help with the issue

Reset everthing or Reset Lot on MasterController might be able to fix the Sim
Overwatch has mechanisms in place that prevents certain scriptErrors that corrupt your sims, like for example the so called TestBrawlError
ErrorTrap can clean up most corruptions or you can post any ScriptErrors that you get in Twallan's forum and he might be able to help you.
ThePorter helps to move whole neighborhoods to a new town, retaining the relationships.