IssueTracker

Yeah it randomly stops without a way to restart.  I get partially restored apps notification

This is quite easy to reproduce with 4G devices and also happens with 3G devices.
Here is what we see.

Purchase phone1. Put SIM in it / Or activate it other way.
Start using it as personal phone. Download bunch of APPs from markets. Set personal wallpapers.
---
--

Now purchase brand new phone2. Same company/same model. doesn't really mater.
Put your working SIM from phone1 to Phone2.

Login using same google account.

Wait for few hours / days. If you are lucky, APPs that you dwonloaded may restore. But most of the time they are not. Alsow wallpaper never restores.

I tried this in DroidX2, Droid3, HTC Thunderbolt, Samsung Charge. Every where, its getting reproduced.

Based on log analysis, we found following:

when the restore function attempts to restore applications via the GMS vending app (market), there is an uncaught exception and it crashes (hence no apps restored).

Not sure what google is doing about this.

As I understand the backup mechanism is not triggered instantaneously. So a backup can happen anytime between 0-8 hrs according to my experience. The reason why you see the restore happening sometimes is because of this behaviour.

Same here, only "partial restore", it seems not to work properly

When my MyTouch 4G bricked during the 2.3 firmware update, I was sent a new phone. When I put my SIM card into the new phone and logged into my Google account, all of my apps were restored without any problem.  

Now my SIM card is damaged (it's old) and I was told by T-Mobile that I would have to get a new SIM card.  I inserted the new SIM card into my phone and activated it but kept getting the "There was a network error while trying to sign in to "Username". Retry now or press the Back button to cancel." message and T-Mobile support told me that "Due to the sim card being changed has caused a proem with your login because the old sim card is not recognized."

I was advised to do a factory reset of my phone at this point, which I did after backing up my contacts. At this point, none of the apps were restored at all and I received no notification about any of them being restored.

Same issue on Droid 2.  Very frustrating if you're depending on it to back everything up. We have to perform resets on a regular basis for troubleshooting, and we can't depend on google backup or backup assistant to keep settings/apps correct.  Since we can't depend on it, it is not a viable backup solution.  
Please either fix this bug, or display that it is beta.  

[Comment deleted]

I just wiped my phone (running 4.0.3) (including erasing the SD card) and re-initialized it; it's happily downloading an awful lot of my previously-installed apps.  (It failed to restore any of my Amazon apps, though.  Some of them were probably installed via Amazon's app store.)

The one app that I ran (linkedin) didn't autofill my username or password.

I wiped my phone due to an upgrade 2.3.4 for LG G2X Tmobile. After restart, no apps downloaded, then I accepted google play agreement and apps started dl'd. well after 4 out of 180 completed, it just stopped as if completed. overnight no more apps installed. I checked google play app again and low and behold a new version of google play has interceded the dl process and I had to agree to new terms of the new upgraded play store. after that, no apps downloaded either.

I believe that google play store upgrade is screwing up the google app restore process.
big bummer! I wish there was a way to stop the upgrade and allow the apps to restore or reset the flag manually for restore from a google website.
please get this fixed!!! and email me if there is a solution gregorythensley@gmail.com