FYI: Tab Groups Lost

My tab groups were gone when I logged in today.

brave://settings/getStarted Continue where you left off enabled.

brave://version

Brave 1.36.112 Chromium: 99.0.4844.51 (Official Build) (64-bit)
Revision d537ec02474b5afe23684e7963d538896c63ac77-refs/branch-heads/4844@{#875}
OS Windows 10 Version 21H1 (Build 19043.1586)

Same here. I launched the browser today and half of my tab groups were missing. And some tabs were missing from some of the remaining groups. Is there a way to restore my tabs and tab groups as I had them?

Brave 1.50.119 Chromium: 112.0.5615.121 (Official Build) (64-bit)
Revision 39cc4e45904ae9f1741c4fbaa866e629c96f2268-refs/branch-heads/5615_51@{#8}
OS Linux
JavaScript V8 11.2.214.14