Distance detection not working

My approach Z30 was  working perfect  for  two rounds then  it  stopped detecting any  distance.   I can not  lock on to hazards or pins.   I tried changing the battery no  improvement.   Every one  in  a while it will  briefly  show  me  a distance bit it disappears immediately.

I have  searched  the  web.  No  one  else  seems to  be reporting this.   I am  returning the  unit, but am hesitant to  buy another.  I have a Garmin Epix 2 and love how  they  work together.

Has anyone  else seen this  issue?   I am  guessing I got unlucky, but do  not  want  to  spend  that  much money for a useless range finder.

Note I have  a  Garmin Approach R10, Garmin bike computer, Garmin. Bike radar and have  been  very  happy with  their performance.  So not a hater at  all.