A new logo was added to enwikt per T138801.
See this discussion (section New logo):
https://en.wiktionary.org/wiki/Wiktionary:Beer_parlour/2016/June#New_logo
According to the discussion, the logo is missing for some people, though not all people. Please check if the logo is OK. Thanks.
Browser console is showing
https://en.wiktionary.org/static/images/project-logos/enwiktionary-2x.png Failed to load resource: the server responded with a status of 404 ()
and probably unrelated:
load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=vector&version=4cZqzpE0:156 Use of "loadedScripts" is deprecated. Use mw.loader instead. load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=vector&version=4cZqzpE0:156 Use of "JsMwApi" is deprecated. use mw.Api() from the mediawiki.api module instead; see [[mw:ResourceLoader/Default_modules#mediawiki.api]]
Change 297183 merged by jenkins-bot:
Put high-res enwiktionary logos in the right place
Mentioned in SAL [2016-07-03T07:42:10Z] <legoktm@tin> Synchronized static/images/project-logos/: Put high-res enwiktionary logos in the right place - T139255 (duration: 00m 38s)
Deployed, and confirmed that the files are in the right place. I don't actually have a high-res display to officially test with, but based on the URL @Peachey88 provided, it should be fine.