Possible WM 6.5 bug???

[tarp21]

Sorry if this has been covered before. I have a TP2 with sprint service. Has anyone been experiencing or experienced problems with calls since upgrading from 6.1 to 6.5? Never had this problem with 6.1. At least once everyday I don't hear someone calling me, doesn't show up on missed calls either. It only shows that I have a voice message. Also, at least once a day I click on a contact to make a call and it won't bring up their contact information to let me make the call. I soft reset and all works fine again.

I use mobile shell primarily but it appears to be problematic with the stock sprint interface as well. So I don't believe it's a MS thing. I use all the same programs I had with 6.1 so I know I didn't add anything that would cause this.

I contacted sprint and they said I would have to take the phone to the store and they would reload the ROM. Don't think it's that either because I hard resetted (before adding my programs including MS) after flashing to 6.5 three times to make sure all will work well without any hiccups from advice seen here on PPCG.

Just curious if anyone has any ideas on this subject and if their experiencing similar symptoms. I can soft reset everday but I shouldn't have to that. I use the cleanram program on automatic clean up every 6 hrs and it takes care of not having to reset the phone until this hiccup. I like 6.5 as it seems to run smoother and faster than 6.1 and the radio is much better. I would really not like to reflash 6.1 if I don't have to. Also, my wife is using 6.1 and never has this issue at all on her TP2 as well.

Any ideas, suggestions would be greatly appreciated. Thanks in advance.

Update: Sorry for posting this here. Just realized there was an Official bugs thread for 6.5
I reposted this there.