The situation you described usually occurs because there is something blocking the path between the family member and where they need to go. The most likely cause is furniture or other decor items that you have placed in the house. Even if it looks clear to you, they might think it isn't. Our little family members can be pretty picky about what "clear" means!
Some examples of how to correct this problem in various situations (yours is more like the second, only without the sock) are:
- If the little people suddenly change their mind about trying to make a baby, try moving the bed or couch away from any walls and try for a baby again. If it still gives you trouble, place the bed or couch on the front porch (or even in the yard). They shouldn't have any problems getting to the furniture then. Just make sure to put it back into the house afterward, so that the little people don't have to sleep outdoors and make themselves sick!
Good luck!
- If the little person drops an object (sock, wrapper, or collectible) right after picking it up and won't take it to the appropriate destination, try moving any furniture that might possibly be blocking their path. They need a clear path, as well as clearance on each side of the destination (washer, trash can, collectibles cabinet), in order to deliver the carried object. If the problem started happening after you purchased a washer and they won't pick up socks anymore, you should start by moving the washer away from any walls or other objects, including the dryer (if you have one). If there's still a problem, look for other objects that might be blocking their path and move those.
I suggest placing one decor item at a time in the Decor Tray, this includes (Plants, rugs, pictures, any item that is able to be moved), and have a family member try to go to that area, or leave that area after you drop them there. If they still can't, add another decor item to the Decor tray and have them try again. Do this for each decor item until either your family members are able to leave the area easily or until you have no furniture/decor items left in the house.
Please note that since you are playing a mobile version of the game, you should definitely not delete and reinstall the game in an attempt to resolve any problems you are experiencing. Doing so will cause you to lose all game progress and any coins or brokerage purchases that you have made.