When uploading 230 files(with around 2GB) at ones with the UploadWizard.
Pressing the "publish" button(after naming, categorization) the browser seems to work and starts to use a huge amount of memory. When coming near to fill up all my 16GB memory Firefox shuts down the tab.(unfortunately without creating a crash report)
The files do not get published on Commons.
I tried it two times with the same result.
I do not know if it is linked to this but the https://commons.wikimedia.org/wiki/Special:UploadStash page only gives me a PHP timeout.(PHP fatal error: entire web request took longer than 60 seconds and timed out)