have the same issue here everytime i do an update ROM fails on 1 of the Sparse 'super' stages, i use to think i'll have to do a clean install everytime but multiple tries and it seems to work one after abit.
has it got anything to do with Magisk and the boot.img shall i unroot first maybe?
Working now did a clean install of the old fastboot EU, then flashed TWRP and then updated to the latest EU no idea why i went round in circles so many times...