Hang bars won’t reach other side? anyone have a similar problem?

hey everyone.

im setting up my new grow tent, sun stream 4x4x8. The instructions aren’t the greatest but it’s self-explanatory for the most part. Only part I’m having trouble with is these hang bars..they’re too short to reach the other side. is this a packaging error or we just supposed to muscle it?
 

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Try other direction, or is other way 8'
they all appear to be equal distance apart, other direction comes up just as short. Also, I noticed the cover is difficult to put on..requires a lot of squeezing. I was going to forget the bars altogether, but it’s nearly impossible to put the black cover on. Figured if I got the bars on it would be a little more snug. Is it normally this much effort?
 
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