Solid Smiley digital OPK, but negative non-digital?

Sarah

I need some help here ladies. In all the years of TTC this has never happened to me! I got a solid smiley my first day testing on my clearblue digital opk, but a super negative on the regular clearblue test? So confused! Has this happened to anyone else?!

Oh and FYI one was after not having peed in like 8 hours and the other was right after working out and drinking a bunch of water if that makes a difference 😁