Photos that I try to pick to flag do not show the flag on the thumbnail. LR 12.0.1 Windows

[desono5000000]

LR 12.0.1

More problems. Now if I attempt to flag an image in Library or Develop mode, the flag icon does not appear on the thumbnail. 

[johnrellis · Accepted solution]

Troubleshooting steps:

1. Do View > View Options and ensure the option Grid View > Cell Icons > Flags is checked.

2. Try resetting LR's preferences:
https://www.lightroomqueen.com/articles-page/how-do-i-reset-lightrooms-preferences/

LR sometimes soils its preferences file, and resetting it can fix all sorts of wonky behavior. That article explains how to restore the old preferences if resetting doesn't help.

[desono5000000]

Genius John! Solved all three of my issues in one fell swoop! I'll try to keep my prefs unsoiled. 🙂

Jeff

[johnrellis]

"I'll try to keep my prefs unsoiled."

It's nothing you're doing -- it's a longstanding flaw in LR internals:

https://community.adobe.com/t5/lightroom-classic-ideas/p-avoid-preferences-quot-corruption-quot-by-c...