When you switch tabs, the first dnd fails silently. All subsecuent dnd actions work (until tab changes again). This may also occur between windows, but only if the windows are being handled by the same HWP.
I found a situation where the drop would fail if it was done between two different devices and the source and target directories had equal inode stat information. That might not sound a likely event, but it happens more often than
supposed. I fixed the condition, so my guess is that the rare bug encounted was precisely this one. Thus I am closing the
bug report. Re open if reoccurs and you can reproduce it.
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Condition also appears when dragging from iconview to deskview
I found a situation where the drop would fail if it was done between two different devices and the source and target directories had equal inode stat information. That might not sound a likely event, but it happens more often than
supposed. I fixed the condition, so my guess is that the rare bug encounted was precisely this one. Thus I am closing the
bug report. Re open if reoccurs and you can reproduce it.