ToME: the Tales of Maj'Eyal

It seems that when detecting an addon that needs updating, ToME will find and start downloading but it fails. Every time it stays at 0 kb/s forever, and nothing downloads. This has happened with more than one addon, and also happens with DLC.

Reporting this is kinda tricky as I admittedly don't keep a lot of addons in my folder at one time (partially due to how OSX does addons), and nothing needs one currently. Is it possible that this is only a thing with macs due to how it stores addons inside of the app? Current OSX versions don't appear to enjoy that idea, and the only other instance of this I've found in the forums with 1.5.10 is also a mac user.