"Does the crash occur when you attempt to create the join, or after the join and you attempt to run the 'Calculate Field' on the SDE table?"
The crash occurs after I join the tables and run the 'calcualte field', it will appear to start processing but then crashes shortly after.
Okay I tried your suggestion and it works fine in the file gdb so the issue lies on SDE. I decided to create a test stand alone table in SDE and a test table in MS Access and the process worked fine as well. I'm not sure if it was because the test I created only had 3 records in it versus the actual table I'm updating having 200+ edits and over 30k records and SDE gets overloaded? What else could I do allow the changes?
Could the issue of editing have to do with the table participating in a relationship class and contains indexed fields?
I just attempted to do a checkin/checkout and the finicky sde table checked out completely blank, it kept the fields but nothing else was there. I'm the only one with editor on sde capabilties but I thought I'd set up a place for myself to edit on. I haven't tried the other SDE based replica creations since I don't want to have to edit, then synchronize changes, it seems redundant right? (Edit: I have read some information about replicating related data and it seems that it is rather a very tangled web which is probably why the check out did not work out well for the table).