Copying the page worked perfectly in the past.
Now it fails with error "An error occurred. Please try again later." without returning any specific error no. or such.
When then trying to "Copy" the page again, Confluence returns, that the copy process is still in progress.
When then trying to "Copy" after around 10 minutes, the copy-process begins from start, without returning any copied page.
Help - pretty lost without that copy-function. Any hints very welcome.