UI sometimes freezes when Rewards are enabled

[iccub]

Description:

We've got few reports from users that sometimes when you visit a page with Rewards ON, the UI freezes for few seconds.
This happens on high end devices too.
I personally was unable to reproduce it.

Few websites that this happens on is Twitter, ESPN, CNN

Steps to Reproduce

1. Rewards ON
2. Start using the app, visiting pages.

Actual result:

Expected result:

Reproduces how often: [Easily reproduced, Intermittent Issue]

Brave Version:

Device details:

Website problems only:

• did you check with Brave Shields down?
• did you check in Safari/Firefox (WkWebView-based browsers)?

Additional Information

[bsclifton]

Internal notes (employee only) can be found here https://bravesoftware.slack.com/archives/C06UXF3KJ/p1625962370289400

[iccub]

linked brave-core ticket here brave/brave-browser#18118

[kjozwiak]

Cases were also added via brave/brave-core#10088 (comment). @srirambv we'll need to double check with both @bsclifton & @jsecretan to see if they can still reproduce the issue once brave/brave-core#10088 makes it into 1.32.x.

[kjozwiak]

Closing as brave/brave-core#10280 was merged. We'll need to wait till @kylehickinson or @iccub can you let us know via this issue when we get a TF build that includes the above? Thanks.

[iccub]

I will let you know @kjozwiak and put brave-core library info in TF build description.

[srirambv]

@iccub confirmed that this is fixed and works fine now for both @jsecretan and @bsclifton . Since its pretty hard to repro and we have confirmation internally that its working fine, marking the issue as QA/No