Properly launch a custom layout in Terminator

I develop VueJS app with a NodeJS server. I'd like to automatically launch a 4-window setup in my terminal with:

.-----.-----.
!  1  !  2  !
!-----!-----!
!  3  !  4  !
'-----'-----'

1. the VueJS client console (npm run serve)
2. the folder of the VueJS client
3. the NodeJS server console (npm run serve also)
4. the folder of the NodeJS server

I have almost everything working with this layout:

  [[myapp]]
    [[[root]]]
      position = -4:0
      type = Window
      order = 0
      parent = ""
      size = 1072, 1884

    [[[grand]]]
      position = 536
      type = HPaned
      order = 0
      parent = root
    [[[left]]]
      position = 942
      type = VPaned
      order = 0
      parent = grand
    [[[right]]]
      position = 942
      type = VPaned
      order = 1
      parent = grand

    [[[terminal1]]]
      profile = default
      type = Terminal
      order = 0
      parent = left
      title = CLIENT DEV
      command = cd ~/projects/node/myapp/client && npm run serve; bash
    [[[terminal2]]]
      profile = default
      type = Terminal
      order = 1
      parent = left
      title = SERVER DEV
      command = cd ~/projects/node/myapp/server && npm run serve; bash
    [[[terminal3]]]
      profile = default
      type = Terminal
      order = 0
      parent = right
      title = CLIENT cmd
      command = cd ~/projects/node/myapp/client; bash
    [[[terminal4]]]
      profile = default
      type = Terminal
      order = 1
      parent = right
      title = SERVER cmd
      command = cd ~/projects/node/myapp/server; bash

What does work?

1. VueJS client lauches correctly and I can access the app with the browser;
2. I am in the correct folder and I can write commands;
3. The NodeJS app seems to work (it writes "app launched on port XXXX", where XXX is the correct port)
4. I am in the correct folder and I can write commands;

What doesn't work?

• 1 & 3) I can interrupt the VueJS client and the NodeJS server with a "CTRL+C" but when I do I just have a "^C" written in the window, the VueJS client and NodeJS server stops as expected but I can't write anything else, such as "npm run serve to launch the client or the server again". Only the "^C" is showing, I'd like to be able to restart both Vue client and NodeJS server;
• 2 & 4) OK

Is there anything I am missing here? Thanks in advance for your help.