When you swipe it right, it should show you a gear icon and then this option:
Never, the 5-series of Oneplus is EOL (End Of Life) and won't be receiving any further updates.
Which navigationg buttons do you have activated?
norrmally it should just be swiping from the left or right edge of the device.
Be sure not to...
Check in the official update thread and see, maybe there's even a few suggestions made in it already...
As long as you have an android version higher than 6.0 it should be fine. So I think you can use it with the OP5 without an issue.