This may be more a matter of limited attention span, poor memory and challenges with active listening.
I have a book recommend that I hope may be helpful, it’s call “The One- Minute Manager” and involves someone taking minutes and sending it out after office meetings so everyone has the meeting in print with everyone’s responsibilities, timelines and accountability clearly defined.
For one on one conversations (and if your a visual learner) you can email them with, “it was great talking with you today. I just wanted to clarify what we needed done and when…”(then list what you remember and they can respond with any crucial details you might have missed.
I really think it’s more a matter of MISSED communication than “Snow Jobs” and I hope my suggestions are helpful.
Great thread, thanks for starting it! 