This is another almost ridiculously small issue that I again hesitate to even mention, but I came across it when I was doing some checks for the previous issue.
If you are doing reviews of Vocabulary skill (Text Input mode) and can’t recall the cloze word, you can usually hit Ctrl+Space to play the word. However on the very first word of the set, this does not work. (And it has to be the first set; if you are continuing on with another set, the first question of the second set works just fine.)
There is a workaround to this; if you type a key, any key, it will activate the Ctrl+Space shortcut for the first word. Actually if you click on another tab in the browser and return to the question (as I did while writing this post) it will also work just fine.
It’s not something that needs any particular attention, then; more just an aside.