In my experience AMCAS has a "once an IA, always an IA" policy.
In other words, a disappearing IA in a subsequent application initiates an automatic investigation.
I do not know if TMDSAS uses the same software, but you would be well-advised to inquire regarding this as AMCAS does not recognize IA expungement:
"You must answer Yes to this question if you were ever the recipient of any institutional action resulting from unacceptable academic performance or a conduct violation, even if such action did not interrupt your enrollment or require you to withdraw. You must answer Yes even if the action does not appear on or has been deleted from your official transcripts due to institutional policy or personal petition."