Substance Global interview questions

Very strung-out and confusing process. First and second interviews were really promising and left me feeling very positive about a potential role and culture fit; unfortunately, things went downhill from there and a couple of weeks went by without any outcome After following up, HR called out of the blue to ask more questions and promised an outcome in a week; 2 weeks went by and I followed up again, resulting in another interview invite for the next day in which they apologised for delays due to bureaucracies within the company and told me to hang on. After another week and a half, I get an email requesting me to complete a task to figure out my motion design skill level, despite Substance never having stressed the importance of this in the job description or early on in the interviews over any other particular skill. After all that, I received a day later saying that the result of my task unfortunately didn't meet the needs of the role. Whole process felt like it was made up as they went along and that they didn't have a proper grasp on who or what they wanted out of the role. The process took so much out of me that all I felt was relief when I received the rejection.