Does it work on the newest released PrimeFaces version? Bug occurs. Version? 6.2
Application server + version: JBOSS 7.2
Scroll all the way down.
If you set a max-height to the tree container, when you try to scroll down the scroll it will never reach bottom, it will jump back after some clicks.

It happens in the primefaces showcase 6.2.
The following new feature when implemented may solve the issue:
https://github.com/primefaces/primefaces/issues/15
This problem is caused by the focus event. Chrome is not getting the focus, but IE and Microsoft Edge.
I'm working on this PR for 15 .
Thank you @HuseyinTurkmenoglu
You are welcome,
I think, PR ready https://github.com/primefaces/primefaces/pull/3610
I checked all browsers.
Thank you again @HuseyinTurkmenoglu, I hope the PR is accepted.
No longer an issue in Edge Version 83.0.478.44 (Official build) (64-bit).
IE11 issues probably won't get any attention without a PRO sponsered fix. Also since Issue #15 is still open addressing this issue I will mark this as a duplicate.