"The fired rounds will stay up..."
That is not quite the issue. The problem as described is not that the empties will stay up when the ejector rod is released, it is that rounds "jump" the extractor. When that happens, the round, empty or loaded, ends up in the chamber ahead of the extractor star, jamming up the gun until the ejector rod is held back and the case removed with a fingernail or tool.
That problem is most common with a round that is shorter than the gun was originally made for, like .38 S&W in an S&W M&P, and is chronic with revolvers chambered for the .45 Colt, whose small rim was never intended for use with a star extractor.*
I would suggest two courses, the first being to always hold the revolver pointing upward and strike the ejector rod forcibly. The second would be to call Ruger and see if they will look at the gun and tighten up that ejector.
*The Army Model 1909, aka the New Service made in .45 Colt, gave the same trouble until the Army made its own ammunition with a larger rim.
Jim