python – Bar disappearing when value gets below 1 in node-red

On node red I have a bars chart representing values of my pressure sensors which are managed by a Raspberry Pi. On the terminal, everything is fine when pressure goes under 1 bar, but on node red, if sensor 1 goes under 1, its bar disappear.

I think it might be because of the code I use to adapt the values to put them in the chart :

const Press = msg.payload.trim().slice(1,-1).split(" ");

i=0;
y=1;
for (const element of Press) {
    msg.topic = "P"+y;
    msg.payload=Press[i]/1e5;
    node.send(msg);
    i++;
    y++;

}


return;

I don’t really know as I’m not an expert on node