When Voyager is trying to get the Captain back on board they're under attack with the shields up. It's been established that Voyager cannot transport anything through the shields. So they should not have been able to transport the Captain back to the ship.
When da Vinci looks for his pen in his workshop and points down at the table, Tuvok freezes him. After Tuvok beams away, da Vinci has slightly shifted position, holding his hand visibly higher over the table than when he froze in his movement.
When Tau is demonstrating the computer to Janeway the computer says the operational temperature margins from ten degrees Kelvin to 1700 degrees Kelvin. The Kelvin temperature scale starts at absolute zero and therefore the units are simply Kelvin, not degrees.