Now it works, thank you.

Me and several other users in Ukrainian Wikipedia have the very same issue. So, it is not dependent on language version. This happened to me for translations be->uk and en->uk, so it neither depends on source and target languages. Finally, I use Opera (while original reporter tried it in Chrome and Mozilla), so the problem does not depend on browser.

In T237048#5741217, @Ramsey-WMF wrote:

@Astinson this fix should be live on Commons now. Want to give a try?

In T240316#5728629, @Ladsgroup wrote:

Added. Does it fix the issue?

In T240316#5728522, @Fnielsen wrote:

Is @Multichill able to add 172.16.0.0/12 to https://www.wikidata.org/wiki/MediaWiki:Autoblock_whitelist ?

BTW, old interface does not work either, but it fails to edit only after importing commands and pressing "Run"

I faced the same issue and I tested it in different situations. This bug appears only on Android devices, but not on Apple devices. On Android devices (I tested it on several devices) it appears in all browsers (tested Opera, Chrome and built-in browser) in both desktop and mobile versions. So this must be an Android related problem.

Any progress?

Ok. Point me please to the exact message I should translate and post to Village Pump in ukwiki.

Also take a look at Crimean Tatar language. I think "Crimean Tatar" and "Crimean Turkish" are the same.

The same is for "Belarusian (Tarashkievica)" (one is displayed in belarussian and other in english)