The timeline probably doesn't make any sense to any of us because I don't think any of us actually believe it to be true. Bearing in mind both TG and RF have been previously charged with giving a false report to LE (not in this case but in their previous criminal charges in other cases), so that doesn't earn them any brownie points in this case, for sure. Probably not with LE, either.
Going only on what I suspect is true, here's my new timeline:
11:04 (yes, it's weird to give that exact time but if she happened to look at the clock on her car's dashboard or something it's possible it stuck with her, I'm like that with numbers myself) TG's cousin leaves with her daughter and the girls were playing hide and go seek in the fort
11:30 Bella's sister calls TG and says she can't find Bella
1:18 the 911 call is placed (nearly 2 hours since anyone's seen Bella)
This narrows the window down to sometime between 11:04 and 11:30 that Bella was taken by JR.
Which only brings up more questions.
Was TG, RF and JR still there when the cousin left?
What time did TG and RF actually leave?
Did LE check both their phones for location history and time stamps assuming they both or either has gps on their phones?
Who called the cousin to tell her Bella was missing?
What time did TG and RF actually get back to the house?
What time does the video display when JR was seen shoplifting?
Is there video surveillance that actually shows TG and RF at Walmart that night?
If yes, what time is on that recording?
I think I have 800 more questions but I'll leave it there for now.