Intro
When you add a button to the page it has a default element name Button X, where X is a letter that increments with each new button added to the page:
Usually I don’t rename button elements, instead I change the text inside the button. And Bubble automatically replaces Button X → Button text-inside-the-button.
Problem
I was happy with this until I’ve faced some workflow problems and went to Server Logs. Here is what i found out - button name was still the default one:
I’ve searched through the forum and found only 1 post (created 6 years ago with no replies) describing same issue:
And then I remembered reading some old Bubble tips twitter post where somebody wrote something like “don’t forget to change your buttons default name not to struggle with server logs later”. I wish I could tag this savior but don’t remember his twitter name 
Solution
Rename your button element:
And enjoy more readable server logs:
And don’t forget to change the name for newly added buttons later on 
P.S. Bonus:
I’ve checked that for you. As soon as you will create 27th button on the page - Bubble will follow two letters mask:
