Menu background visual glitch after logging out of server

When i logging out of 1 of the featured server, which is Cubecraft, a glitch occurs in the background

Step to reproduce,

1. Login in to your microsoft account

2. Join Cubecraft

3. log out

4. if it didnt occurs repeat step 2

Expected result,

Normal minecraft 26.30 panaroma

Actual result,

Glitch background