I am getting the message below from TimeManager in QGIS. The error message is confusing because the date is displays would seem to be a valid format (I'm using YYYY-MM-DD). The table is in sqllite format.
Any suggestions where to look for the problem? I have done a quick check of this large table, but I don't see any problems with the date field.
Here is snippet of the table:
Here is a snippet of the Field types in the table. The date field is a QString.