After four days trying to post, I finally released the entire week's worth of files today (2 - 5) for "Touring Under Pressure".
The problem is a longstanding one which hasn't been widely reported on the Authors Forum, but which I seem to keep running across where I post a chapter, which I can clearly see, but it never reaches Lazeez. Neither of us has any idea how to correct the problem (it's difficult to fix something you literally can't see), so the problem is likely to continue. Luckily, the rest of the files in the series won't be affected.
In case you're interested, I still have several sci-fi stories which I haven't posted to Sci-Fi because I've been posting the older "Catalyst" series. Once I wrap the series up, I'm hoping to upload those additional stories too.