Although you set your box as trusted, LastPass may occasionally prompt you to authenticate again using multifactor authentication.
Delete all the files from that folder and set your rig as trusted again.
Google Chrome
If you use Google Chrome, navigate to C:\Users\UserName\AppData\Local\Google\Chrome\User Data\Default\databases\chrome-extension_hdokiejnpimakedhajhdlcegeplioahd_0.
kick off the folder and delete all the files within.
Then log back into LastPass and set your gear as trusted once again.
Firefox
If you use Firefox, go to C:\Users\UserName\AppData\LocalLow\LastPass.
Locate and delete the .suid files.
sign in to LastPass again and add your setup to the list of trusted devices.
Microsoft Edge
Now, if you use Microsoft Edge, navigate to C:\Users\UserName\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe.
Remove the .suid files.
Then sign back into your LastPass account and set your machine as a trusted machine again.
Next, navigate to ~/Library/Containers/com.lastpass.LastPass/Data/Library/utility Support/LastPass/Containers.
Then open thecom.lastpass.LastPassfolder and empty it.
After you deleted all the files, sign back in and set your Mac as a trusted machine again.
Otherwise, your third-party utilities will keep on deleting the cookie that keeps your setup trusted.
The same is valid for your web client configs.
Modern browsers give you the option to automatically clear your session cookies when you exit the surfing app.
double-check your web app doesnt automatically scrub the cookies and site data when you end your session.
Additionally, tick theAllow all cookiescheckbox.
To fix the issue, prevent your net web surfer from deleting your session cookies when you close it.