I am using Aspose.Slide dll for .net version 5.6.0.0 to convert OpenOffice presentation (.odp) to tif format. The output tiff file doesn't contain the titles and place holders in the source file. I have attached the source .odp document and converted tiff file for your reference.
I have worked with the presentation file shared by you and have been able to observe the issue shared by you. An issue with ID 32314 has been created in our issue tracking system to further investigate and resolve the issue. This thread has been linked with the issue so that you may be automatically notified once the issue is resolved.