I have exactly the same issue with my LG 43UJ630V purchased in August this year. Firstly very disappointed with the WebOS, lack of sufficient internal memory to run the 'apps' properly without constant restarts to 'free up memory' - no excuse for this really given memory is so cheap now. Anyway another major disappointment is the total inability of these sets to use USB Flash drives - LG claim this is due to the read/write limitation of said devices which is quickly exhausted by recording in HD/ 4k. Well all I can say is my six years old Toshibal could manage this faultlessly . The LG however sometimes records OK then other times the recording simply stops after a few seconds. Don't know if this is a 'power' issue or the almost new flash drive is now 'worn out' but whatever LG should either insure their products do what the advertising says or fix the problem. Concerning the 'restarting to free memory error' I did manage to get a call eventually from LG support tech who just stated these TV's are not like computers and cannot be expected to run their Smart TV Apps! Er, excuse me this was promised and is why I purchased the damn thing.