I updated to v1.7.0 (1.7.0.3). about 2 days ago… I did have to delete and reboot phone and reinstall for it to work as it gave me the unable to connect warning a few times… i am not going to jinx it but it does seems to have fixed whatever the issue was after the reinstall!
I have turned off auto updates on my phone just in case! will keep testing - Its been working fine on my android tablet throughout all the updates no problem.