DateTime Variable in Sub Widget resets on Compile

When attempting to set the default value of a date time in a sub widget the changes are not kept after compiling.

1. Create a Widget Blueprint
2. Add DateTime Variable
3. Make DateTime variable instance editable
4. Create another widget blueprint
5. Add first widget blueprint to second widget as sub blueprint
6. Attempt to change default value of DateTime variable in sub widget
7. Compile

Results: The DateTime is reset to 0001.01.01--5.00.00 -0500 , regardless of what it was set to, even set in the base widget blueprint.

Expected: The DateTime variable should retain the changes after compile.