I haven’t listened yet…but this often happens to me.
Ignore it and write your song…then record it and sing it like it’s brand new…which it is.
If it was a massive hit and somebody sued you for every penny you made from it…think of all the publicity…and what would you have lost?
Nowt…that’s what.
And that’s the worst-case-scenario.
Most likely, it won’t be anything of an issue to anyone but yourself.
Carry on, I say…