Positions suffered glitch – TD Ameritrade: Mobile Trader Review

My Positions at opening today were correct, my P/L YTD was correctly stated @15.00. At mid morning my YTD. suddenly jumped to some minus $300. As I tried to understand this it suddenly returned to normal. YTD was now a little lower. Now this glitch has returned. Can you fix this? Regards, Sam Hopkins. can’t find or see education features. Can’t find any but trading screen. For example it took me two weeks to find XDE FUTURES AND OPTIONS. Now I want to review the Greeks, but cannot locate a discussion. I get the feeling thinkorswim mobile analyse is a Möbius strip, not a teaching tool. I traded options by open outcry at the old Phlx exchange in the 80’s, before I became a banker, and I find your program very infriendly.
Review by upthestreet1 on TD Ameritrade: Mobile Trader.