Routing issue for remote vpn user and spoke

Hi all,
i have configure VPN (see attached file)
before upgrading ASA from 8.3 to 8.4, SPOKES was able to communicate between them and also remote VPN users was able to access spoke site.
after upgrade ASA HUB, neither spoke-to-spoke nor remoteuser---to---spoke cannot communicate
here is NAT exemption configuration on ASA HUB. only this ASA have been upgrade. nothing have been done on other site
object network 172.17.8.0
subnet 172.17.8.0 255.255.255.0
object network 10.100.96.0
subnet 10.100.96.0 255.255.240.0
object network VPN-SUBNET
subnet 172.20.1.0 255.255.255.0
nat (outside,outside) source static 172.17.8.0 172.17.8.0 destination static 10.100.96.0 10.100.96.0
nat (outside,outside) source static 10.100.96.0 10.100.96.0 destination static 172.17.8.0 172.17.8.0
nat (outside,outside) source static VPN-SUBNET VPN-SUBNET destination static 10.100.96.0 10.100.96.0
nat (outside,outside) source static VPN-SUBNET VPN-SUBNET destination static 172.17.8.0 172.17.8.0
same-security traffic permit intra-interface
same-security traffic permit inter-interface
Please do you know what can be the problem ?
thanks so much for your help

Since you are not NATing any of those traffic and it's a u-turn traffic, pls remove those 4 NAT statements. They are not required at all.
Pls "clear xlate" after removing it and let us know how it goes.

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One other thing - I had a problem with the key pairing so I rebuilt the rsa 1024 and the unit started working. Unfortunately I reloaded without the config in place and now I cannot get it to work again. Any help will be greatly apprecaited although I did review a dozen other posts of people having similar problems and for some reason there is never any conclusion as to the solution and I am not sure why.
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interface ethernet1 100full
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fixup protocol rtsp 554
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