We're experimenting problems trying to upgrade wp 4.8 to 4.9
It's fails indicating there's an issue with access permissions.
We have checked all around and we haven't detected the problem, so far.
Anyone else experim...
In my experience, there are several things it could be. Either file/folder permissions are incorrect, or the file/folder ownership is incorrect.
Before I offer any advice, I must cover and emphasize the following: