Problems with package “floatflt” [closed]

Question

In a document I am writing I am using the floatflt package to have some floating tables. Right now, this works fine in all but one case:

The code for "achieving" this result is:

\begin{floatingtable}[r]{
\begin{tabular}{lllr}
    T   & = tav & = & 400
\\  o   & = waw & = & 6
\\  r   & = resch   & = & 200
\\      ah  & = he  & = & 5
\\  \multicolumn{2}{l}{in der Summe:}   & & 611
\end{tabular}}
\end{floatingtable}

There is another strange thing: In some cases, when I place the code for the floating table just one line above or below in the surrounding code, the table disappears entirely.

Any ideas as how to have the floating tables properly set?