ist to pdf conversion is most likely searched by users that have files from Inspiration software and want to get these as PDF. This is possible, but for the documents / diagrams (.isf or .ins), but does not seem to be very likely for templates.
But of course if you have some specific needs with the templates and are determined that this should somehow works, it would be best to reach out to Inspiration support or online community.
This conversion entry was verified by us and conversion was flagged as wrong or not possible.
Usually this happens when the conversion would try to convert different types of data between each other, such as audio to image, or it is not possible because incompatibility between programs, caused by closed file formats, very limited support etc.
If you find entry that you feel is flagged as bad wrongly, please tell us in the discussion below with as much as information as possible so we can fix it.