Ansible fetch from various hosts various files

I am newbie to ansible. My goal is to fetch files from various servers. Each server has different path where a file is stored. Destination path is always the same.

I have the following:

- name: fetch files
  hosts: hosts
  tasks:
    - name: fetch files
      fetch:
       src: /home/ubuntu/test1/testing1.txt
       dest: /home/ubuntu/
       flat: yes
       when: inventory_hostname == "ansible1"

    - name: fetch files2
      fetch:
       src: /home/ubuntu/test2/testing2.txt
       dest: /home/ubuntu/
       flat: yes
       when: inventory_hostname == "ansible2"

My inventory file is:

[hosts]
ansible1
ansible2

When I execute:

ansible-playbook fetch.yml -i inventory.txt

The output is following:

PLAY [fetch files] ****************************************************************************************************************************************************

TASK [Gathering Facts] ************************************************************************************************************************************************
ok: [ansible2]
ok: [ansible1]

TASK [fetch files] ****************************************************************************************************************************************************
ok: [ansible1]
fatal: [ansible2]: FAILED! => {"changed": false, "msg": "file not found: /home/ubuntu/test1/testing1.txt"}

TASK [fetch files2] ***************************************************************************************************************************************************
fatal: [ansible1]: FAILED! => {"changed": false, "msg": "file not found: /home/ubuntu/test2/testing2.txt"}

PLAY RECAP ************************************************************************************************************************************************************
ansible1                   : ok=2    changed=0    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0
ansible2                   : ok=1    changed=0    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0

Why it tried to run it for other hosts when the condition is specific for one? Second question - why for the second task "fetch file2" it actually doesnt fetch it at all, although the file is present on the remote machine?

I am using for the test and development multipass and ubuntu. SSH keys are imported on the target machines.

Thanks in advance for help :)

Your indentation is wrong. when needs to be at the same level as fetch, not below it.

    - name: fetch files
      fetch:
        src: /home/ubuntu/test1/testing1.txt
        dest: /home/ubuntu/
        flat: yes
      when: inventory_hostname == "ansible1"

The missing indendation results in both tasks being run on both hosts. Since the first task fails on the host ansible2 because the src path doesn't exist there, Ansible ends the playbook for this host and no further tasks are executed for it. The second task then fails on the remaining host, again, because the src path doesn't exist there.

But you could make this much easier by saving the src path as a host variable and reduce it to a single task

host_vars/ansible1.yml

src_path: /home/ubuntu/test1/testing1.txt

host_vars/ansible2.yml

src_path: /home/ubuntu/test2/testing2.txt

playbook.yml

- name: fetch files
  hosts: hosts
  tasks:
    - name: fetch files
      fetch:
        src: "{{ src_path }}"
        dest: /home/ubuntu/
        flat: yes