P: Drag and drop GPS tagging not working. Right click on map also not working

Your very own post in this thread, from 1 year ago, says you were in contact with the engineers. (?) I interacted directly with you and then silence until now...

In May 2019, I met on 'bluejeans' to share my computer with engineers 'Gopinath Srinivasan' and 'Smit Keniya'. Most of what was discussed was verbal. But here is their email response after the meeting: 

"Unfortunately, the requirement to have Address Lookup enabled is mandatory now. From the logs, it appears that there are sign-in issues that cause the Map Service to be blocked initially for certain Locations, and then the geocoding intermittently gets a chance to succeed."

"       The last thing I heard, 18 months ago from Adobe engineers, was that they understood the problem, and it wasn't my hardware. Then they vanished. " 

Can you provide me with information about this interaction? I would like to review it. 

@8510810 thank you for your response. The first official response in almost a year. I hope you won't disappear on me now...

Maybe 'corrupt' is the wrong word. But I have had this issue on multiple machines now, and a fresh catalog always fixes it, temporarily until I import photos that cause Address Lookup to hang. Unfortunately, I can't tell which photos these are without a very arduous process. 

Yes I have tested hardware, RAM, replaced RAM, and even replaced my machine. The last thing I heard, 18 months ago from Adobe engineers, was that they understood the problem, and it wasn't my hardware. Then they vanished. 

ALLOW US TO DISABLE ADDRESS LOOKUP please! Surely we don't need LR to require this option to fill in the county or city name in Metadata, at the expense of GPS tagging functionality for some users. 

Fair enough. For me, it does not appear to be a preferences file issue.

"It isn't a preferences file issue."

I don't think you can conclude that with Antonio's issue, which may not be "the same issue". Rereading all the posts in this thread and the one one two years ago, it appears Antonio is the only one who reports a seriously corrupted display of the map, which is why I suggested the troubleshooting steps above (update graphics driver, set Font Size, reset preferences).

Note that the preferences file stores a lot more than than just the user settings of options in the user interface. It stores a lot of the application's internal state. LR has a serious architectural flaw that allows the preferences file to get corrupted, and this has been shown to cause a wide range of LR misbehavior.

@2126481 Flohr - from the other posts it sounds more like it is due to GPS tagging being broken due to address lookup - would you please comment on that more pressing issue?

Jerome - your solution sounds the most promising/closest to what I am experiencing, I am not sure I am following your steps quite correctly though

Adobe took my lcat. catalog for repair but it hasn’t solved my issue. The speed or the import is improved on the repaired catalog but I still can’t add GPS information to any images once the import completes.

Works fine for 10 test images but the GPS completely stops working once I import from the repaired catalog

Hi Jérôme - how do I identify the folder that was being imported when the corruption occurs? What happens to me is the import takes a very long time (seems abnormally long for 18,500 images) and gets to about 70% progress before changing to a “stacking images” message. I don’t get an actual error message .

Catalog corruption is normally a result of hardware failure, power failure or accidental disconnections of data cables. If you have a catalog that is repeatedly corrupting, it might be prudent to test hard drive, RAM, etc.  Have you done this?

Have you ever had your catalog repaired?