I had the same "pending" issue with TT on my CA return. I filed my CA return on myFTB quickly but I was concerned what if TT submits after I submitted with FTB.
Just finished chatting with FTB, they assured me that FTB would prevent TT from submitting my return again. Specially, the one which TT did for me was incorrect (I discovered about the TT's error after I filed myself with FTB).
Actually, I found FTB more helpful than TT!
