Sometimes we are noticing that Slide Thumbnails generated by Slide.GetThumbnail() method is rotated 90 degree (left goes to bottom). We are using aspose.net 21.5.0
This behavior is random so unable to provide any ppt for this. We are also not able to repeat it intentionally.
note: We keep ppt object long opened in aspose. We have noticed this mainly when code is deployed on Docker linux. We have tried with multiple versions of docker linux but we get it on all randomly.