Hi,
despite the state of this ticket, the tool still loses formulas that are not inlined as soon as the page is closed. This can, for example, be observed when translating the page on rotational diffusion from English Wikipedia to German.
For translation, I use a 64-bit version of Firefox on Linux.
Likely unrelated to that: If you try to get more information using Firebug, the tool stops working: It does not show any translation in progress and switching between translations in progress and published translations yield TypeError: translation.$element is undefined
. This stops as soon as you disable Firebug and reload the page.