Hello,

Pending balance is the amount of blocks that you are continuously finding, it seems like you had been mining steady and as a result your pending balance is growing. Also, it appears you had a period of downtime around 16-40 hrs ago at the time of this post and yesterday your balance wasn't moving because of the period of time you didn't mine on the pool. As you have returned, the balance begins to move again after the 24hr mark of your return of finding blocks with the pool. The pending "catching" the balance is all based on when blocks confirm and also how steady you stay connected to the pool to actually earn balance. Everything is working as it should and hopefully that answers your question.