danielbeck I just tried to reproduced using 2.341 and firefox 98 but I couldn't. Did you have the problem on an empty controller or did you have some plugins?

It's probably dependent on exact character widths.

I set the timestamp of the build of my test to match the one of your example and yet I cannot reproduce.

I also could not figure out a way to reproduce this. Daniel, in the future can you please write a set of Steps to reproduce, Expected results, and Actual results? Just writing "See attached" isn't very clear to me.

I don't know what to tell you.

1. docker run -p 8080:8080 jenkins/jenkins:2.342
2. Skip plugin setup
3. Create freestyle job 'fs'
4. Click "Build Now"
5. Edit the build.xml to have both timestamps start with 1648636131 (+ any 3 digits for millis)
6. Go to /job/fs/reload
7. Confirm POST
8. Go to /job/fs
9. Observe the reported behavior

I just did exactly this and it worked first try.

Mac OS 12.3.1, Firefox 99.0, no minimum font size defined for the browser. In fact, it works in a new user profile (via about:profile).

Chrome does not have this problem, neither Safari.

I followed Daniel's directions to the letter on my system (Firefox 99.0, Ubuntu 20.04.4 LTS x86_64) and could not reproduce this problem. I don't deny the problem exists, but it doesn't occur on my system. As a result I cannot perform bisection to find the change that introduced this problem.

Edited my previous comment, I copied the wrong timestamp (current as of writing, not the one from the report) into the steps. Sorry about that!

1648636131 doesn't exactly match either, but I can reproduce it even with 12:28 PM.