Problem editing from book module

I'm directing this query to Adobe's support personnel (as they are the ones I pay every month for this software) but if there's anyone out their doing their support work for them, I'll take help from any quarter  : )

Prior to upgrading to Lightroom CC Classic if I was working on a book I could highlight an image directly on any of the book preview pages, or the strip below, and by clicking 'Develop'  or 'D' I would be taken directly to the develop module for that image, I could apply changes, then select 'Book' and be taken back into the book to the same place as i left off

Since updating this only functions intermittently....As often as not if I do this I am taken to the Develop module but to a different image!!!

The same will occur if I choose 'Library' or 'G'

When his occurs the only option I have is to right-click the image on the strip below, select 'Go to folder in library'...then click 'Develop' from the library view...make the changes and then return to book view! (At least it still finds its way back to the correct place in the book view

This has only occurred since updating. It is occurring on both a laptop and a desktop. It is occurring with different catalogs. Apart from any changes made by the update process there have been no changes, updates etc applied to either laptop or pc

It would appear that this is a bug in the newest update, which is making the book module incredibly unwieldy

The only fix I attempted (on one machine) was to disable graphics GPU and to apply the config.lua patch, a solution put forward on this forum for a different developing bug: Neither of these had any effect

Please advise

Rob