I think the 'Rich' editor is a recent addition and now it's the new default in the latest Vanilla forum v.3.3. It's a simpler editor geared for mobile use, and with that editor enabled, the upload button won't display on a desktop, tablet, or mobile.
The theme in use is the default theme -...
I don't know if this would qualify as a true bug, given where the script is inserted, but the behavior doesn't match the expected result.
▶🚶Reproduction steps
[LIST=1]
Select the copy/paste code from the PUP page using any choice of options; where the URL strings are properly set to the...
...should be
"Bilder hochladen" (correct german spelling)
Thanks,
J
PS: in the pup documentation: "Supported language strings" is missing "en" (which I wanted to use instead of "auto" which gives me german)