Hi
Check that there is not another clip on a higher track that is hiding the title on Video Track 1. If you have placed it on track 1 as you describe and have retained a clear background it will appear with a black background in the sequence preview screen but with a chequered background in the clip preview screen. if you have used black text in this case it won't be seen in the sequence or the sequence preview, the whole screen will appear black......... Note the position of the red cursor line and the appearence of the text on Video Track 1 which suggests it ought to be visible........ The dual preview screens show why it won't be seen....

If you set up like this (above) use a colour other than black for your text. If you have a clip and want the text to show over it place the title on Video track 2...... Here I have used yellow text with a red outline and placed on Video Track2 over the clip on Video Track 1. Note the position of the red cursor line through both clips.....

Nat