I got it!
My stupid free windows unzip "App" didn't create a proper image file... re-extracted (while watching ads, not minimized) and it works! Thanks for the help!
Mind sharing a link to working version and the hash to verify my unzip is correct ?
Tried a few times to no avail now, both 20181015 and 20180930.
20181015 is giving me this MD5 and SHA1 when writing on the USB:
MD5 (Drive): 4AF33E910DCC87B8358C130B114E5C28
MD5 (Image): 4AF33E910DCC87B8358C130B114E5C28 [MATCHED]
SHA1 (Drive): B6B5C2AA9D9846112ABE461FF4DA9DCFBE641CB9
SHA1 (Image): B6B5C2AA9D9846112ABE461FF4DA9DCFBE641CB9 [MATCHED]