

Main pitch slider - Check the Main pitch slider is at the default position.Omni MIDI preview channel - When you have Omni MIDI preview channel set each key from C5 triggers a different Instrument Channel and so you cant.Right-Click the Time knob and select ' (none)'. Right-Click the Pitch and Multiplier knobs and select ' reset'. Override the sample settings - Click on the Audio Clip or Sampler Channel to open the Channel Settings SMP tab.Middle note errors can't be ignored and must be corrected in the sample (see above). Ignore BPM - The General Settings option ' Read sample tempo information' (sample meta data) can be deselected and the BPM will be ignored.You can also set FL Studio to ignore this data by deselecting Read sample tempo information. Low and High should be set to C0 and G10 respectively. Check the Tempo (BPM) field is empty (or set to the correct BPM) AND/OR the Middle note is set to C5 (the default).

If this is wrong then it can cause issues as described above.

If you load samples and they play too fast, play too slow, change their pitch or won't change their pitch (3 below) there are a number of places to check in the sample for incorrect ' meta data'.
