A *.tiff image file with white background as Raster attachment was attached in DGN model and then Display of this Raster attachment's Colors were inverted. Modeling background in OpenPlant Modeler by default is set to black color and after inverting Display of this Raster attachment's Colors, annotations and components are visible and can be placed and modeled without any issues.But after saving model as DWG file, Raster attachment is saved without inverted Display Colors. All annotations and components, which were placed on top of this Raster attachment, because of same white background, became invisible.
The easiest solution would be to used Raster Attachment with already prepared required background color, because Inver Display Color functionality works for attachments inside OpenPlant Modeler and while sawing it as DWG model it saves it as image with original file settings.
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