List of steps to reproduce (step by step, including full links if applicable):
- Log in
- In Special:Preferences disable the compact languages link feature like so:
- Visit https://de.wikipedia.org/wiki/Berlin
- Click the language button
Most of the time the language dropdown shows like so:
However, occasionally no menu will show like so:
I was able to replicate this 1 / 10 times.
Software version (if not a Wikimedia wiki), browser information, screenshots, other information, etc:
Issue occurred on German Wikipedia.
The following gadgets are enabled:
The Content Translation beta feature is enabled.
I was unable to replicate on https://de.wikipedia.org/wiki/Berlin?safemode=1
It's possible the class vector-menu--hide-dropdown is related.
Inspecting the code this class is removed if the module ext.uls.interface is being loaded. Presumably a race condition exists where some code loads that module.