For some reason unless I missed it, the gun charge was not part of this trial...it is not something that goes to trial, you are cited for it at the moment of arrest so not sure what happened to the charge.
Incorrect. --- In a trial the charges listed in the indictment are the charges you are being tried for. Th indictment is typically returned from a grand jury. What you are charged with at your time of arrest is not necessarily the list of charges you will face in trial from the indictment. The DA drives the indictment and charges.
In this trial for Rittenhouse -- "The count that the judge just dismissed, which was listed as Count 6 in the indictment, was a misdemeanor stating that Rittenhouse was under 18 years old with a dangerous weapon."