Molting tarantula

[Knuckles]

i have an a.chalcodes, it’s probably a 4 1/2 DLS. It’s been in heavy premolt for the last couple weeks. When I came home from work Today, to my surprise she was on her back molting! Well it’s been six hours and there’s been no progress in the molt, no movement, nothing. I’m worried she has some sort of complication during her molt and passed away.
I have not touched the enclosure in fear of jarring her and actually causing real problems.
I’ve read in can take up to 15 hours but... that seems unlikely. I’ve never had any species of any size take this long to molt.
Any feedback would be greatly appreciated...
Hope she’s alive and well.

 

[sasker]

There is not much else you can do but to wait. You could help her if she get stuck half-way, but for now it is just wait and see. I hope she will be alright.

 

[The Grym Reaper]

Subadults/adults can lie there completely motionless practically all day before even popping the carapace to kick things off properly, be patient.