Hello @tpajevic​,
My name is Henry and I am happy to assist with your inquiry, and appreciate you contacting LastPass Support!
I am sorry about the issue you are experiencing. This is most likely being caused by the Google Password Manager. Please verify if you have stored your LastPass Master Password on it and delete it and any other passwords for lastpass.com. Once completed, you should no longer have this issue when seeing your passwords within LastPass.
Please let me know if this worked or if further assistance is required.
Thank you,
Henry | Customer Care
Hi Henry, I tried your advice but it didn't fix it
And the suggestion from Henry above did not fix the issue ( deleted the password from safari password manager) Still can't get in to the vault, help!
Hi I am having the same issue in safari on a MacBook Pro. Every time I type my master password I get in for 3 seconds and then it goes back to login screen, fill in masterpassword. Very annoying!