Many of the other planes drop out of ADS-B receiver coverage from time to time and give jagged plots but it appears that they are holding at the VOR while LMI2933 is holding several miles south of the navaid.
Has anyone found other plots of the holding on other ADS-B trackers like RadarBox24 or FlightAware? Also, on the RJ85 are the nav instruments and computers updated with radio nav and maybe as Dave says, the transponder only sends inertial position? The holding pattern does look like it is nicely plotted, just not in the right place.
If these RJ85s are really transmitting at NUCp 0 data quality level as Dave says then forget about trying to match positions. NUCp 0 means the position error could be greater than
10 nm.
Garbage In, Garbage Out. All that can be determined from the data is that the aircraft was somewhere within the vicinity of the VOR.