Intemittent fault - Editing mode core 9

I have this intermittent thing…
When i put a page into edit mode, it sometimes automatically goes to the home page instead of showing the same page but in edit mode.
Each time i have to click the back button on the browser and then refresh, and then i get the page i wanted in edit mode.

I’m stumped?

Are there any errors showing in the ‘Dashboard/Reports/Logs’ that might help?

when i navigate to the logs page i get…
An error occurred while processing this request.

What Concrete version / PHP / MySQL version are you running on there? Are you able to get to the environment information dashboard page?