Your post reminded me of my former therapist. He had a lot of issues with memory and sloppiness and even blaming me for it sometimes. It was extremely annoying in the end. I would not care much if someone I recently met did not remember my last name, but not remembering about paperwork and not following up on contacting your former T (if that is what you meant) seems sloppiness to me. My former T was totally unable to trace our session dates 1-2 months back when I asked him to provide the info for insurance reimbursement, and when I provided that info, would often argue with me about the correctness of the dates, sometimes he would bring up dates that were a Sunday or holidays... He also tended to forget my cancellations when I made them a few days before and would call me on the morning of the supposed session, asking where I was. He demanded to always remind him the day before. He was older (~late 60s), but being older does not justify repeated professional sloppiness and blaming it on the patient if someone chooses to work. He also came back to me with the authenticity thing when I criticized him a few times. The more I saw him the clearer it became that he was very fake and dogmatic, and when I brought this up (not with words like those), he responded that it was strange to him to hear because most people experienced him as authentic. I did not say it but thought to myself, if that was true, then most people must be blind... And when I got pissed and expressed it, he would interpret it as displaced anger that was meant for my mother, which was wrong I think.

I would perhaps also give Kashi a couple more sessions but maybe if he continues to give a similar vibe, finding someone else may be a better option. Especially given that it sounds like you worked with some pretty good therapists before. I now have a good T (after the jerk I described above) and I would probably prefer not to be in therapy at all if I couldn't find a similarly professional and conscientious T.

On the physical issue... of course we don't want to devalue someone due to such things and discriminate unfairly, but the truth is that those things do affect how we feel about other people, want it or not. Especially a therapist, whom many of us want to see as an example for a healthy and integrated person. Perhaps the cane and the neurological problem would not bother you if the presentation did not coincide with him forgetting stuff and explaining things using the disability. I feel it is normal and healthy that you have these concerns.

My last thought is around the "woundedness" thing. In everyday life, I often find myself drawn to people who are willing and able to openly express vulnerability (probably because I struggle with this) and are emotionally honest... but depends on the nature of the relationship. This is good in friends but not what I look for in professional relationships or authority. I think everyone is wounded in some ways and I personally do not believe in such a thing as a T who has worked out all of his issues and does not struggle with anything. But I think it is a fair expectation that they do not use their problems as excuses for not doing their work.

Again, I would maybe give him a bit more time and try out other therapists.