Can't download and install software update on iphone 8
I have been trying to get the latest update on an iphone 8.
I go to Settings = General = Software update = Download and install
Then it shows a Temporarily Remove Apps popup, I tap continue, it then looks like it is working but after about 30 secs it shows the Download and Install option as blue again.
I just updated an iphone 7 this morning on same wifi etc with no problems.
Any ideas much appreciated.
iPhone 8 Plus