RoboHelp 10 - Table Preferred Column Width Issue

I converted a RoboHelp 9 project to RoboHelp 10 and noticed that Column 1 in all tables has a preferred width setting of 93% and it is not allowing me to remove this setting. When I uncheck the Preferred width checkbox and click OK, then go back to the Table Properties>Column tab, the Preferred width checkbox is checked again with a width setting of 93%. The column width is not specified in the HTML, it is set to fit to the contents (<col  />). The odd thing is that Column 1 only displays this way in Design view. When previewing and publishing the topic, it displays correctly (fits to contents). This however makes editing content in tables extremely difficult in Design view. Any assistance is appreciated.