Clearblue question

Hey everyone I’m trying to track ovulation for the first time in a long time but I’m a little confused.

So my period finished about 1.5 days ago and this morning I took an ovulation test and logged it in pre mom and it says low. My <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> and flo app also say I’ll be ovulating in about 6 days (I know it’s not accurate or reliable) but when I took a clear blue test this morning as well it had a solid smiley face

which confused me so much…. Is it a defect because I haven’t used it In a while? I checked the package and the test aren’t expired. When I went back to check it about 15 minutes later the smiley was gone and it’s a blank screen. Does the smiley go away after it sits to long? The picture is my ovulation test.