Can I file another provisional application if the first one isn't good enough?

[DullBoy]

I've heard that provisional application not detailed enough can lead to rejection of a following non-provisional application due to the mismatch of described subjects. Also no changes/amendments allowed to the provisional application filed already.

Can I file another provisional application, corrected and amended, and abandon the first application not referred by any non-provisional application?

[Brad]

Yes.  You can file a second provisional application and then your full non-provisional can link back to both applications or just your second one if you truly don't there there is any benefit to the first one.