I had noticed this the other day and tried looking into it, and I took the 1.3-stable.10 update this morning thinking maybe it would resolve the problem but its still there.
The Jk-Utils Solar Altitude program runs with no errors but the Widget has the following error:
TypeError: this.DataUiFieldsDisplayed[i].substr is not a function
This is in the ConvertTime function
Not sure what may have changed but I am running the standard version of this utility. Does anyone else have the same error with the widget?