Gain Block is stuck in wrong data type

I have a gain block in which I configured uint8 as data type (screenshots below). It then is connected to an outport of type uint8

Still when generating code using EmbeddedCoder I get the failure messages:

Data type mismatch. 'Input Port 1' of <output port name> expects a signal of data type 'uint8'. However, it is driven by a signal of data type 'ufix16_En8'.

Data type mismatch. 'Output Port 1' of <gain name> is a signal of data type 'ufix16_En8'. However, it is driving a signal of data type 'uint8'.

Is there any way to configure this gain block correctly?

Screen shots:

[Kiran Felix Robert]

I am unable to reproduce your issue, could you please attach your model file ?