- Created a new reading plan using a stock ESV Study Bible Reading plan edited for KJV (haven't read it through in years).
- Clicked a link in the reading plan--sometimes the KJV would open or, wrongly, my default Bible (NKJV) or occasionally the NLT (which I read last year). Re-clicking the link always took me to the correct version.
- Noticed that the reading plan was not syncing with my phone.  Tried nearly everything.  No success.
- Deleted all present and past reading plans and created a new plan on my phone.  Syncs beautifully with my PC now.  Phone opens the correct version.  
- PC now insists on opening my default version (NKJV)  rather than the Reading Plan indicated version (KJV). If I switch default Bibles, the reading plan opens the new default. Crazy, huh? Note again that my phone opens the correct version. Re-clicking the link no longer works to get me to the right version. 
Is the Reading plan broken?  Or something else?