I2C issues with libmdot-mbed os5

Hi,
I’m trying to upgrade to mbed-os5 but there seems to be some issues with I2C support when using libmDot-mbed5.

I’m using mdot-library revision 2.0.15 and mbed-os revision mbed-os-5.1.5

When using the previous libmdot for mbed-os2, the I2C works, when using mbed-os5 and the corresponding libmDot, the library returns the wrong values or fails to communicate with the I2C devices.

Is this yet another incompatible undocumented feature?

thanks

Andrew