Hi Old_eyes,
while I was thinking abot basically the same job I found yours already in the queue :-)
But I noticed that for the second mosaic image you did _mention_ the S2 O3 Filter, but in the joblist it´s actually missing?!
Ha-O3 is there, and also a non filter jo instead?!
Maybe you wanna fix that so we do get a harmonized mosaic?
CS, Martin