LastResort font spamming log

Our packaged project is spamming

[2017.05.18-16.47.26:722][  2]LogStreaming:Warning: Failed to read file '../../../Engine/Content/SlateDebug/Fonts/LastResort.ttf' error.
[2017.05.18-16.47.26:722][  2]LogSlate:Warning: GetFontFace failed to load or process '../../../Engine/Content/SlateDebug/Fonts/LastResort.ttf'

in the logs every tick it seems. We cannot figure out why this is happening or why this font isn’t being packaged. It seems to start at the moment the fonts are loaded from the log files.