Program: 178709
Project: 178709
Buggy source:
public void useGel(Player player,V10Location locTo,Vector vector){
  Region region=plugin.regionManager.getRegion(locTo);
  Block block=locTo.getHandle().getBlock();
  if (region.getBoolean(RegionSetting.ENABLE_RED_GEL_BLOCKS) && plugin.blockUtil.compareBlockToString(block.getRelative(0,-1,0),region.getString(RegionSetting.RED_GEL_BLOCK)))   return;
  if (region.getBoolean(RegionSetting.ENABLE_BLUE_GEL_BLOCKS)) {
    if (player.getVelocity().getY() <= 0) {
      if (plugin.blockUtil.compareBlockToString(block.getRelative(0,-1,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return;
 else       if (Math.abs(vector.getY()) > 1 && plugin.blockUtil.compareBlockToString(block.getRelative(0,-2,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return;
 else       if (Math.abs(vector.getY()) > 1 && plugin.blockUtil.compareBlockToString(block.getRelative(0,-3,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return;
    }
    if (vector.getX() >= 0) {
      if (plugin.blockUtil.compareBlockToString(block.getRelative(1,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return;
 else       if (Math.abs(vector.getX()) > 1 && plugin.blockUtil.compareBlockToString(block.getRelative(2,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return;
 else       if (Math.abs(vector.getX()) > 1 && plugin.blockUtil.compareBlockToString(block.getRelative(3,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return;
    }
 else     if (vector.getX() <= 0) {
      if (plugin.blockUtil.compareBlockToString(block.getRelative(-1,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return;
 else       if (Math.abs(vector.getX()) > 1 && plugin.blockUtil.compareBlockToString(block.getRelative(-2,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return;
 else       if (Math.abs(vector.getX()) > 1 && plugin.blockUtil.compareBlockToString(block.getRelative(-3,0,0),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return;
    }
    if (vector.getZ() >= 0) {
      if (plugin.blockUtil.compareBlockToString(block.getRelative(0,0,1),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return;
 else       if (Math.abs(vector.getZ()) > 1 && plugin.blockUtil.compareBlockToString(block.getRelative(0,0,2),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return;
 else       if (Math.abs(vector.getZ()) > 1 && plugin.blockUtil.compareBlockToString(block.getRelative(0,0,3),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return;
    }
 else     if (vector.getZ() <= 0) {
      if (plugin.blockUtil.compareBlockToString(block.getRelative(0,0,-1),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return;
 else       if (Math.abs(vector.getZ()) < 1 && plugin.blockUtil.compareBlockToString(block.getRelative(0,0,-2),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return;
 else       if (Math.abs(vector.getZ()) > 1 && plugin.blockUtil.compareBlockToString(block.getRelative(0,0,-3),region.getString(RegionSetting.BLUE_GEL_BLOCK)))       return;
    }
  }
  return;
}

Fixed version (ground truth):
public void useGel(Player player,V10Location locTo,Vector vector){
  V10Location vl=new V10Location(locTo.world,locTo.x,locTo.y - 1,locTo.z);
  for (  V10Location loc : plugin.portalManager.borderBlocks.keySet()) {
    if (loc.equals(vl)) {
      resetPlayer(player);
      return;
    }
  }
  for (  V10Location loc : plugin.portalManager.insideBlocks.keySet()) {
    if (loc.equals(vl)) {
      resetPlayer(player);
      return;
    }
  }
  Region region=plugin.regionManager.getRegion(locTo);
  Block block=locTo.getHandle().getBlock();
  if (region.getBoolean(RegionSetting.ENABLE_RED_GEL_BLOCKS))   redGel(player,block.getRelative(BlockFace.DOWN),region);
  if (region.getBoolean(RegionSetting.ENABLE_BLUE_GEL_BLOCKS)) {
    if (player.isSneaking() || ignore.contains(player))     return;
    String bg=region.getString(RegionSetting.BLUE_GEL_BLOCK);
    for (    BlockFace face : new BlockFace[]{BlockFace.DOWN,BlockFace.NORTH,BlockFace.SOUTH,BlockFace.EAST,BlockFace.WEST})     if (plugin.blockUtil.compareBlockToString(block.getRelative(face),bg)) {
      blueGel(player,region,face == BlockFace.DOWN);
      break;
    }
  }
}