Edits to power-flow-card yaml keep reverting after saving

[peteDDD]

I was trying to manually edit my power-flow-card only to find that when I pasted and saved my code into the "show code editor" editor that it was not actually being saved but overwritten by the configurations in the UI. I have not had this issue with other cards. Is this a known problem or am I doing something wrong?

Thanks

[peteDDD]

Fixed by closing all browsers and rebooting PC.