Bug when the same node is put into the same workflow project

I developped a node which works good. But when I put into the same workflow project an other identical node, then the two nodes does not work.

It is the Dialog of the nodes which bug when we use them.

Someone have already encounter this problem ?

What (wrong) behaviour are you experiencing with your node?

Finally I found the solution I am sorry.

Indeed my NodeModel had a static attribute, and this attibute was a vector which was filled in the NodeModel constructor.

The first node I put into the workflow works well, but when I put a second node into the workflow, then the vector was filled a second time because of the NodeModel constructor. So only the first node of the workflow worked well.

I hope this will be useful for some people...