Here is what I have done thus far.
1) logged out of app, 2) closed app and deleted from iphone, 3) turned iphone off and then back on, 4) installed app and logged back in, 5) turned iphone off and back on to reboot the system again, 6) changed settings and closed app, 7) opened app and check settings to see that they had once again reverted to default settings. I also logged out and back in without deleting the app. Still reverts to default.
As to the caching name, it was changed within the first few months after started the account back in 2007. There has been no change since then or since acquiring the Cachly app.