Read the resolution again.
The bigger round up was in September, but I'll stand corrected on the one case - even though it is still three months after the secession vote.
Then allow me to correct you a second time. He was arrested on May 14th, as the resolution clearly states.
Did the arrest of the knucklehead traitor have any effect on the April 27 secession vote? No
The point I countered was that Lincoln arrested "legislatorS" in Maryland to prevent them from voting for secession. That is a confederate myth. Maryland wasn't going to secede and they had already voted once not to secede.
I suppose it is possible the traitors in the legislature might have tried a fast one like the insurrectionist Missouri legislature or the fraudulent convention in Kentucky. Like those two cases, it would have been of no practical consequence.