sample rate change yields short midi files

i recorded a midi organ track on a 44.1K song and rendered it w settings to an audio track/ Later i had to change the sample rate of the project and converted the files to 48K / The audio track changed, However the original MIDI file is no longer correct length-wise /
Is the a way to fix this so i can post-edit the midi track and re-render? thanks all
screen shot below