This occured to me on test2.wp

1: Existing account (not sure what editor settings I had at that point)
2: Disable JS
3: Log in on test2
4: Click edit.
I'm directed at: https://test2.wikipedia.org/w/index.php?title=Selenium_Echo_mention_test_0.10285483494822323&action=edit

I get an empty page (I'm deriving from that that I'm in VE mode, but without JS VE won't start). There is no feedback.

5: I enabled JS
6: reload page
7: VE loads
8: I get Edit tab dialog
9: I choose wikitexteditor
10: Disable JS
11: Reload same url as before

Now I have a working wikitext editor.