I add pattern MultiSupport 1 and 3 to 260 point , add pattern MultiSupport 2 and 4 to 261 point, But ultimately only

[chicken]

I add pattern MultiSupport 1 and 3 to 260 point , add pattern MultiSupport 2 and 4 to 261 point,
But ultimately only pattern MultiSupport 3 and 4 have impacts on the results Where is the problem？
Looking forward to your reply
This is part of my code：


puts "Transient analysis"
set xDamp 0.05;
set nEigenI 1;
set nEigenJ 2;
set lambdaN [eigen [expr $nEigenJ]];
set lambdaI [lindex $lambdaN [expr $nEigenI-1]];
set lambdaJ [lindex $lambdaN [expr $nEigenJ-1]];
set omegaI [expr pow($lambdaI,0.5)];
set omegaJ [expr pow($lambdaJ,0.5)];
set alphaM [expr $xDamp*(2*$omegaI*$omegaJ)/($omegaI+$omegaJ)];
set betaKcurr [expr 2.*$xDamp/($omegaI+$omegaJ)];
rayleigh $alphaM $betaKcurr 0 0

#earthquake
puts $alphaM
puts $betaKcurr


set iGMfile "DM1X.txt";
set iGMfact "1";
set dt 0.005;
set dispSeries1 "Series -dt $dt -filePath $iGMfile -factor $iGMfact";

set iGMfile "DM2X.txt";
set iGMfact "1";
set dt 0.005;
set dispSeries2 "Series -dt $dt -filePath $iGMfile -factor $iGMfact";

set iGMfile "1.txt";
set iGMfact "1";
set dt 0.05;
set dispSeries3 "Series -dt $dt -filePath $iGMfile -factor $iGMfact";

set iGMfile "1.txt";
set iGMfact "1";
set dt 0.05;
set dispSeries4 "Series -dt $dt -filePath $iGMfile -factor $iGMfact";

pattern MultiSupport 1 {
groundMotion 1 Plain -disp $dispSeries1
imposedMotion 260 1 1
}
pattern MultiSupport 2 {
groundMotion 2 Plain -disp $dispSeries2
imposedMotion 261 1 2
}


pattern MultiSupport 3 {
groundMotion 3 Plain -disp $dispSeries3
imposedMotion 260 1 3
}
pattern MultiSupport 4 {
groundMotion 4 Plain -disp $dispSeries4
imposedMotion 261 1 4
}