When I click for the first time, the page jumps normally, the second click, prompting me that the ID already exists, and the third click becomes a null point ，At the top of the page，the caption disappeared
Hello @JJJJ
What version of CUBA.platform do you use? Could you provide a sample where the problem can be reproduced?
Regards,
Daniil
version 6.7.4
In the whole project, only one of the menu options has a problem, but it is not different from other menus.
Thank you.
Could you check your case for the latest platform release 6.9.5?
Regards,
Daniil.
We finally solved this problem. Because I set the id of an excel button to id = “button”,remove the id or modify it to return to normal.But I don’t know why this is
