FolderTest#copyJob is failing with a NPE, due to the jobs not being copied, in newer Jenkins versions. The test does not always fail, but it does so quite frequently.
It seems like a timing/focus issue, but I have tested different approaches (putting focus into the input field, clicking on it, adding a generous wait time) and neither of them is working. Also some weird log traces are being displayed, so maybe this should be investigated more in depth (see attached screenshot).
PS: I am using this profile to execute the test: