As a matter of interest, what data do you get when flights are live? On the map plot the altitude and speed are shown correctly (as seen on other tracking programs) so I presume the source is the same and these sources will also have identifying information about the aircraft itself. Is it a database issue that the type can’t be changed “live” or the complexities of looking up for the correct aircraft?
This has happened quite a lot recently. Yesterday’s LOT3/4 was reported as a B788 but was SP-LPE a B767 and today, for example, there are 3 QTR A32x aircraft indicated as B788.
The live flight can be shown if the aircraft registration is entered so it’s not that the appropriate info isn’t there.