Farsi Image Names are not seo-friendly

Hi, I have a site in Farsi language and I am using aiomatic for automatic post creation. The images produced automatically for my posts does not have proper names. For example, for a post entitled: مقاله نمونه aiomatic should produce an image with, for instance, this name: 1426-مقاله-نمونه.jpg which 1426 is attachment_id of the image. But, unfortunately, the image has this name: 1426-d985d982d8a7d984d987-d986d985d988d986d987 It seems that aiomatic converts the name into utf-8 encoding and then it removes the "%" sign from the encoding. It is important for my image SEO that my images are saved with the appropriate name and URL. Are there any settings I need to adjust to fix this problem?