Hiya MsJosie! Yes, many things were "cancelled". Witnesses were categorized as "A" (important witnesses who will probably be called to testify in a trial) and they should have been categorized as "C" (people with info, but not necessary to testify on witness stand). The link to this story will explain in detail.
http://www.nbc-2.com/story/35631627/state-admits-mistake-in-sievers-court-case
..."The witnesses should have actually been listed as Category C. That would mean the witnesses couldn't be called in to testify nor could the defense subpoena them for questioning in the pre-trial.
The 47 planned depositions were scheduled by attorneys from Faga Law representing Mark Sievers, and within a day, the State Attorney's Office noticed their mistake on the witness list."
Thanks IQuestion sometimes the legal paper work is baffling! I appreciate your explanation. This will be an interesting trial when it starts.