Deleting your ride from Strava, then carrying out an update on Vv followed by a re-upload to Strava and a further update of Vv would have resolved this. Just don't click on the ride again
This has me wondering why Ben hasn't automatically processed a definitive tile list for all rides, rather than wait for someone to manually click on a ride and view it on Vv as it is more accurate than the tile list calculated using the default summary map line.
I'd rather have the most accurate picture of which tiles I've covered (I know things improved when the 100m buffer was removed and the resulting squareapocalypse) but currently only a few of my 800+ rides have had a definitive tile list calculated and it would take a long time for me to manually select each one to trigger a more accurate calculation. You can see which ones this has been done for by looking on the activities tab and filtering your listed rides by 'Tiles calculated'
Having been prompted by your post though, I've clicked on the ride I did today and was relieved to see that all the tiles I gained are still there. Gaining one of the tiles involved riding 800m down a road towards a farm that was clearly signposted 'Private Road' and 'CCTV in Use' at the start of it and had been troubling me for some time - phew!