Honeybee Daylight simulation error

Hello,

When I try to run a daylight simulation with an 'annual daylight simulation (ANN)' recipe I get the following error:

1. Solution exception:unsupported operand type(s) for +=: 'str' and 'bool'

The type of recipe appears to be related to the problem, because de error desolves when I connect the component to a different recipe.

A screenshot of the complete error message is in the attachment.

Error text:

0. Annual climate-based analysis
1. The component is checking ad, as, ar and aa values. This is just to make sure that the results are accurate enough.
2. Good to go!
3. Current working directory is set to: c:\ladybug\unnamed\annualSimulation\
4. Rotating the scene for 41 degrees
5. Runtime error (TypeErrorException): unsupported operand type(s) for +=: 'str' and 'bool'
6. Traceback:
line 6509, in transform, "<string>"
line 1665, in writeRADAndMaterialFiles, "<string>"
line 193, in main, "<string>"
line 258, in script

Many thanks in advance