Strange bug with headphones output and Microsonic

I am finding a great number of voices/patches not playing in Cubasis on my iPad Pro. I thought it was an installation issue so did a full reinstall only to find the problem remained. I soon realised having unplugged my headphone jack that the instrument works perfectly out of the ipad speakers and this issues only occurs on the audio output of the headphone jack. I know, very strange. Has anybody else encountered this or know how to help me?

Many thanks in advance.

Hi amigomatt,

Thanks for your message.
So far, we have not seen issues in that direction.

Please make sure to let us have the exact steps to give the issue a repro at our end: