I am using ArcGIS Pro 3.1.0
Last night I created a spectral profile chart of my training samples on Landsat 8 images, a composite of 4 bands (NIR, SWIR, Red, and Blue). I created 5 profiles of my 5 training samples group. Each spectral profile took over an hour to generate, but after waiting around all day for it to finish, I saved my project and shut down for the night.
Today, when attempting to open the project the whole thing hangs. I got it to work by opening the project and immediately closing the chart and all maps. However, even though the project opens now, the chart will not load.
Here is a screenshot of what I see:

So, I've opened up Diagnostics Manager and got the tasks up. Unfortunately Diagnostics Manager closed itself when I copied the tasks page text and now it won't open back up at all, but heres the three tasks its frozen on:
ArcGIS.Desktop.Mapping.MappingModule.QueryFontStyleNames
ArcGIS.Desktop.Charts.ChartUtils.GetThemeItemCollectionAsync+
ArcGIS.Desktop.Charts.Chart.getSeriesDataAsync+
It appears (in order of operation) it is getting stuck on the "Chart.getSeriesDataAsync+" step. Does anyone know why this would be happening?
Let me know if you need anymore details. Thanks for the help!