Hi Russell,
The issue is that when my client is using his own tile package as a basemap in collector and he lets the device go into sleep mode, when he turns the device on again he gets a message saying 'unfortunately Collector has stopped'.
He is on Nexus7 running Android OS4.4.4. I have asked him to upgrade to Collector 10.2.5. A recap of the steps are:
1. Side load tpk to device
2. Download map to device and choose option to use tpk as basemap (choose the entire extent of the tpk as the area)
3. Open Map and zoom into an area
4. Enable airplane mode (to simulate being in the field)
5. Let device go into sleep mode (2 minutes)
6. Let device sit for 10 minutes
7. Turn device on - he will see error message at that point
I have not been able to replicate here on a Nexus phone or a samsung tablet, which is why I haven't submitted the issue to Esri Inc support at this point (I am testing with an account on my client's organization site, with the same map he is using). I am currently getting the client's colleague to test the workflow on another device. I wanted to see if I could find that crash log in case it turned up any more info to help narrow down the problem.
Thanks,
Sarah