compass error

Posting to see if anyone else has had similar problems... Random "funky" stuff started 2 weeks ago - side note, I've done videos of this property before without any issues. Was trying to do a Real Estate video , laid the Karma on a flat surface (suburban street), started Karma then...

After a month of issue free flying (and learning), I went to fly yesterday from my front yard (same location as dozens of very happy flights) only to get a voice warning from the controller shortly after take off. I am not sure of the exact words (as I was fighting a very sick drone), but it...