When you enter a command in the UI of the Command Block Cart, close the UI and then reopen it. You will find that the command you entered has disappeared. (This bug may not always be reproducible, and it is unstable.)
MCPE-229937
In some cases, the command block cart UI does not display the commands that have been entered
Resolved
Duplicate
0
(Unassigned)
Unconfirmed
Android
Android 14
1.21.130.22 Preview, 1.21.130.20 Preview, 1.21.114 Hotfix
Retrieved
Please edit your report to change the Affected Version to the version shown on the Minecraft title screen