OK, so I broke all the rules from sourdough mavens, teachers and taboo artists but it worked. Because my sourdough in a breadmaker kept collapsing before baking, I used rapid rise yeast and shortened the bake cycle to 2-hour rapid bake instead of 4-hour basic bake. Came out great, maybe needs a darker crust than medium but good rise, great taste and good crumb.
As with bread baking it’s what works that counts. At the end of the day you want a nice risen loaf with good texture and flavour. Looks like you have all three. Enjoy!