[design-updates] Bugfix in singleGArun

functions/miscellaneous/singleGArun.m

@@ -169,6 +169,9 @@ for i = 1:nAz
     indexBeta = find(betaExit(i) == input.fltcon.BETA);
     launchpad.indexAlpha(i) = indexAlpha-1;
     launchpad.indexBeta(i) = indexBeta;
+
+    launchpad.indexAlpha(launchpad.indexAlpha <= 0) = 1;
+    launchpad.indexBeta(launchpad.indexBeta <= 0) = 1;
 end
 [c, ~] = XCPcheck(x, input, data_opt, launchpad, rocket, environment, settings);