Just noticed that your log contains private data - you may wan't to remove that attachment, replacing it with a revised version? (I am not affiliated with this project or site - just passing by as a user of this tool).
Problem persists, e.g. I cannot hit "Cancel" or move / minimize the window. Apart from that I wonder why this is so painfully slow ( 7 Minutes) https://sourceforge.net/p/googlesyncmod/bugs/1308/
More than 7 minutes to reset? It's in "Resetting Google Person matches" Is it possible to activate some debug output? 2022-03-19 16:48:04 | Information | Reset Matches started 2022-03-19 16:48:04 | Information | Connecting to Google... 2022-03-19 16:48:04 | Information | Connecting to Outlook... 2022-03-19 16:48:04 | Information | Loading Outlook contacts... 2022-03-19 16:48:04 | Information | Loading Google Groups... 2022-03-19 16:48:05 | Information | Loading Google Contacts... 2022-03-19 16:48:06...
Just noticed that this is also extremley slow - having about 600 contacts - I wonder why (but there is another ticket for that).
Why does every Contact take approximately 1s to sync?
"Reset Matches" UI unresponsive during "Resetting Outlook Contact matches..."