The index file might be corrupt. Thunderbird has a function that will rebuild it.

1. Right-click on the folder, and choose Properties.
2. Click Repair Folder.

Thanks for the suggestion. I tried that and there is no change.

Are you using a non default theme in Thunderbird?

The colors used in that pane are the same for all accounts, unless you have installed an add-on that affects just that one. Try restarting Thunderbird with add-ons disabled from the help menu.

Thanks again. The only addon I am using is Lightning. I tried it anyway, but unfortunately, there was no change. I am thinking that maybe I need to create another version of the email account and delete the problem version.

It's weird that it's only one account. I would think a problem like that might be a attributed to the graphics card or like Matt suggested, the theme. What happens if you tag a message?

Tagging made no difference. I am also perplexed by the fact that it's just one account.

I just created a new account for the same address and disabled the old one. The new one seems fine and there are no other issues.

Thanks for taking the time to try to solve this!

-Dave

In order for us to better investigate this issue you need to add a little more non-personal information.

Please add the troubleshooting information to your post To find the Troubleshooting information:

• Open Help (or click on three-line-icon and select Help)
• Choose Troubleshooting Information
• Use the button Copy to clipboard to select all. Do not check box "Include account names"!
• Paste this in your post.

Actually...

A good starting point is Thunderbird safe mode. What happens when you do https://support.mozilla.org/en-US/kb/safe-mode-thunderbird ?

Here is the troubleshooting info minus my account info...

 Application Basics

   Name: Thunderbird
   Version: 45.3.0
   User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0
   Profile Folder: Show Folder

             (Local drive)
   Application Build ID: 20160825102941
   Enabled Plugins: about:plugins
   Build Configuration: about:buildconfig
   Memory Use: about:memory

 Crash Reports

 Extensions
   Lightning, 4.7.3, true, {e2fda1a4-762b-4020-b5ad-a41df1933103}
   AttachmentExtractor, 1.3.5.1, false, {35834d20-efdb-4f78-ab77-9635fb4e56c4}
   CompactHeader, 2.1.0, false, {58D4392A-842E-11DE-B51A-C7B855D89593}
   Google Search for Thunderbird, 1.0, false, gsearch@standard8.plus.com
   Provider for Google Calendar, 3.1, false, {a62ef8ec-5fdc-40c2-873c-223b8a6925cc}

 Important Modified Preferences

   Name: Value

     accessibility.typeaheadfind.flashBar: 0
     browser.cache.disk.capacity: 204800
     browser.cache.disk.filesystem_reported: 1
     browser.cache.disk.smart_size_cached_value: 358400
     browser.cache.disk.smart_size.first_run: false
     browser.cache.disk.smart_size.use_old_max: false
     browser.cache.memory.max_entry_size: 32768
     browser.display.screen_resolution: 96
     dom.apps.reset-permissions: true
     extensions.lastAppVersion: 45.3.0
     font.internaluseonly.changed: false
     font.minimum-size.x-western: 9
     font.name.monospace.el: Consolas
     font.name.monospace.tr: Consolas
     font.name.monospace.x-baltic: Consolas
     font.name.monospace.x-central-euro: Consolas
     font.name.monospace.x-cyrillic: Consolas
     font.name.monospace.x-unicode: Consolas
     font.name.monospace.x-western: Consolas
     font.name.sans-serif.el: Calibri
     font.name.sans-serif.tr: Calibri
     font.name.sans-serif.x-baltic: Calibri
     font.name.sans-serif.x-central-euro: Calibri
     font.name.sans-serif.x-cyrillic: Calibri
     font.name.sans-serif.x-unicode: Calibri
     font.name.sans-serif.x-western: Verdana
     font.name.serif.el: Cambria
     font.name.serif.tr: Cambria
     font.name.serif.x-baltic: Cambria
     font.name.serif.x-central-euro: Cambria
     font.name.serif.x-cyrillic: Cambria
     font.name.serif.x-unicode: Cambria
     font.name.serif.x-western: Georgia
     font.size.fixed.el: 14
     font.size.fixed.tr: 14
     font.size.fixed.x-baltic: 14
     font.size.fixed.x-central-euro: 14
     font.size.fixed.x-cyrillic: 14
     font.size.fixed.x-unicode: 14
     font.size.fixed.x-western: 14
     font.size.variable.el: 17
     font.size.variable.tr: 17
     font.size.variable.x-baltic: 17
     font.size.variable.x-central-euro: 17
     font.size.variable.x-cyrillic: 17
     font.size.variable.x-unicode: 17
     gfx.direct3d.last_used_feature_level_idx: 0
     mail.openMessageBehavior.version: 1
     mail.winsearch.firstRunDone: true
     mailnews.database.global.datastore.id: 721949cb-9b47-44a8-8675-98502cbb560
     mailnews.database.global.indexer.enabled: false
     network.cookie.cookieBehavior: 3
     network.cookie.prefsMigrated: true
     network.predictor.cleaned-up: true
     places.database.lastMaintenance: 1473382929
     places.history.expiration.transient_current_max_pages: 104858
     places.history.expiration.transient_optimal_database_size: 128595886
     plugin.importedState: true
     plugin.state.flash: 0
     plugin.state.npctrl: 0
     plugin.state.npgoogleupdate: 0
     plugin.state.npintelwebapiipt: 0
     plugin.state.npnitromozilla: 0
     plugin.state.nppdf: 0
     plugin.state.npqtplugin: 0
     plugin.state.npspwrap: 0
     plugins.update.notifyUser: true

Wayne - There was no change in safe mode

Very odd.

Open tools | error console and clear it. What happens if you right+click a folder of that failing account and pick "open in new tab"? And what do you see in error console?

I recently encountered someone with the very same symptoms and repair folder worked for them (a gmail account).

If that doesn't help, does removing the google search addon help?

Also, similar symptoms at https://support.mozilla.org/en-US/questions/1138467

Since you wrote you are using 3 accounts, first check whether or not your message pane view is set to "Unified folders" (perhaps unintentionally) in Options (using the menu button) OR View (in the menu bar) > Folders. You could also be using them intentionally.

Then try this: In 'Unified Folders' view, right click on the top main Inbox and select 'Properties'. Name should be Inbox on Unified Folders. click the 'choose' button and make sure all the 'Inbox' folders are selected for the different accounts. click on OK.

Did you need to reselect the Inboxes? Please report back if you did.

Check that the search criteria uses the radio button for "Match all messages" and that there are no additional criteria.

Typically you'll see a greyed out "Subject" "contains" and a empty field followed by the plus and minus buttons. click on 'update'.

(Source / courtesy of this support question reply By Toad Hall)

In case you don't use the Unified Folders view, try switching to and from it to see if that helps.

If none of those actions helped, see these 2 articles for additional options: http://kb.mozillazine.org/Unified_Folders_not_working and http://kb.mozillazine.org/Disappearing_mail

Dave wrote to me... "I wasn't able to resolve the issue, so I ended up creating new accounts. The issue hasn't not happened again."