At the Last Supper it was Jesus and his Apostles. Scripture does not say anyone else was present.
Apparently you did not read my suggestion.
If the disciples on the way to Emmaus were not previously on the prior Thursday in the Upper Room, then how did they “recognize him in the breaking of the bread”?
You can cite a miracle, but that not only stretched the narrative, but it is not how the incident was written; the word “revealed” is not used, but rather “recognized”.
Thursday evening, Christ celebrated the Passover Meal, which we refer to as the Last Supper. There is no indication in the narrative that only the Apostles were invited. The lack of mention of others at the Supper is not indicative that others were not there; it is simply silence as to any others.
And the disciples went back to the Upper Room - how would they even know where the Apostles were unless the disciples were also with them? Nor was there any surprise noted when the disciples told the Apostles they had seen the risen Christ35 "Then the two recounted what had taken place on the way and how he was made known to them
in the breaking of the bread"
And none of the Apostles remarked “But you weren’t there - how did you know this?” or express any amazement that the disciples would know something
which they had not previously seen and participated in.
Again, you have to explain how the disciples would even know the Eucharist without having participated in it, and how they knew where the Apostles were if they had not been with the Apostles.
So I submit that Scripture does say they were with Christ and the Apostles at the Last Supper; the information is at the end of Luke’s Gospel.