Once again I've been in the middle of a game, spent some time thinking about a move and eventually moved, only to find my time still ticking down and the move not having been processed. So I tried refreshing the page and this is where things got really weird...
After refreshing the page, the game went all the way back to an earlier state (move 14) with my opponent to move, as if all the moves that we just played never happened. My opponent offered a draw. Going to the analysis board still only shows moves up to 14, even though we played much longer than that. P̶l̶a̶y̶i̶n̶g̶ ̶v̶a̶r̶i̶a̶t̶i̶o̶n̶s̶ ̶o̶n̶ ̶t̶h̶e̶ ̶a̶n̶a̶l̶y̶s̶i̶s̶ ̶b̶o̶a̶r̶d̶ ̶m̶a̶k̶e̶s̶ ̶t̶h̶e̶m̶ ̶a̶p̶p̶e̶a̶r̶ ̶a̶s̶ ̶i̶f̶ ̶t̶h̶e̶y̶ ̶w̶e̶r̶e̶ ̶w̶h̶a̶t̶ ̶a̶c̶t̶u̶a̶l̶l̶y̶ ̶h̶a̶p̶p̶e̶n̶e̶d̶ ̶i̶n̶ ̶t̶h̶e̶ ̶g̶a̶m̶e̶,̶ ̶i̶n̶s̶t̶e̶a̶d̶ ̶o̶f̶ ̶a̶p̶p̶e̶n̶d̶i̶n̶g̶ ̶t̶h̶e̶m̶ ̶a̶s̶ ̶v̶a̶r̶i̶a̶t̶i̶o̶n̶s̶.̶ ̶ (edit: actually this is normal behaviour)
Here's the game
en.lichess.org/1JB3iAiY
Here's the moves we played after 14 (as I recall)
14 ... Nc6
15. Bxf6 Bxf6
16. Nxd5 Re5
17. Nxf6 Qxf6
18. Nxc6 bxc6
19. Rxc6 Qe7
20. Rd6 Rb8
21. Rd8+ Kh7
22. Qc2+ Bf5
At this point I played the move which the game seemed to freeze on (at which point I refreshed the page) which was 23. e4
After refreshing the page, the game went all the way back to an earlier state (move 14) with my opponent to move, as if all the moves that we just played never happened. My opponent offered a draw. Going to the analysis board still only shows moves up to 14, even though we played much longer than that. P̶l̶a̶y̶i̶n̶g̶ ̶v̶a̶r̶i̶a̶t̶i̶o̶n̶s̶ ̶o̶n̶ ̶t̶h̶e̶ ̶a̶n̶a̶l̶y̶s̶i̶s̶ ̶b̶o̶a̶r̶d̶ ̶m̶a̶k̶e̶s̶ ̶t̶h̶e̶m̶ ̶a̶p̶p̶e̶a̶r̶ ̶a̶s̶ ̶i̶f̶ ̶t̶h̶e̶y̶ ̶w̶e̶r̶e̶ ̶w̶h̶a̶t̶ ̶a̶c̶t̶u̶a̶l̶l̶y̶ ̶h̶a̶p̶p̶e̶n̶e̶d̶ ̶i̶n̶ ̶t̶h̶e̶ ̶g̶a̶m̶e̶,̶ ̶i̶n̶s̶t̶e̶a̶d̶ ̶o̶f̶ ̶a̶p̶p̶e̶n̶d̶i̶n̶g̶ ̶t̶h̶e̶m̶ ̶a̶s̶ ̶v̶a̶r̶i̶a̶t̶i̶o̶n̶s̶.̶ ̶ (edit: actually this is normal behaviour)
Here's the game
en.lichess.org/1JB3iAiY
Here's the moves we played after 14 (as I recall)
14 ... Nc6
15. Bxf6 Bxf6
16. Nxd5 Re5
17. Nxf6 Qxf6
18. Nxc6 bxc6
19. Rxc6 Qe7
20. Rd6 Rb8
21. Rd8+ Kh7
22. Qc2+ Bf5
At this point I played the move which the game seemed to freeze on (at which point I refreshed the page) which was 23. e4