ERA-vs-Erned runs ???

[Palmer]

Question about Pitchers ERA's/Unerned runs

I know this is not a scorekeeper's sight but who better to ask than the experts

I was told recently by a scorekeeper after one of our games; after our team scored 4 runs in an inning that none of them were erned. The situation was as follows, 1 hit, followed by 2 batters reaching base on errors, then another true hit, then a monster true homerun. I was informed that none of the runs were erned, because they occurred after 2 errors were made, which means the inning should have been already over. Therefore, all the runs scored after the 2 errors were made don't count as erned runs for us, and count as unerned runs for the pitcher stats. ???? Is this true, or have I been misinformed?? Does it matter how many outs there were during these situations ???

If anyone can help, I would be most apprciative.

Respectfully

Palmer