Problem with SD Card, maybe the CD4050?

Hi there,
I finished my new Ambika now, and it’s all nice, except the SD Card connection. I can’t save anything and no presets are shown.
I read in another blog, that there were problems with the cd4050 chip and that it has to be swaped for a 74hc4050, could that solve my problem? (I have a CD4050)

yes. cd4050 must be swaped for 74hc4050

otherwise, there’s a small software fix for this problem, a research on the forum should provide you the answer.