PR #1054 has caused the number of downloads to be one less than what is set. Set download limit to 2, download a video, and then download a second video. The second download is listed as "Added" in progress and does not begin downloading until the first download has finished. Downloading them as a selection works fine, but adding them one at a time does not. Bump the download limit to 3 and the two downloads work fine, but a third download will wait for the first two to finish.
The download icon also does not appear in the episode list. Prior to #1054, all waiting downloads would have an icon, now there is no way to know if an episode has been added to the download list without opening the progress tab.