I'm having issues with Textra on my Nexus 5 (my OPO still isn't on a carrier yet). After rebooting the notification will pop up that I have so many thousand unread texts but they're all old texts. I can't get rid of the notification by deleting app data. I have to uninstall and reinstall Textra. Very annoying. I don't want to switch but I have phone warrior also installed and I may just switch to that since I can block numbers from calling or texting with it.