Yes. Currently the game explorer has problems when loading positions that have derived from games with a pre-set starting position. When I start a game with a friend with the French Defence- Exchange Variation, for example, the game explorer does not work. I must manually input the moves.
This is an issue that needs to be fixed, and so don't worry, it's not just you! 
Hello!
Recently when I click the "Explorer" - button while playing a thematic tournament game, the position in the pop-up window displays the initial position of the tournament, not the current position on the board. For example in the "Ruy Lopez" - tournament the explorer always opens at the Ruy Lopez position after 3.Bb5.
In other games (non thematic) the Explorer shows the current position properly.