# Basic info <!--- Add commit SHA used to reproduce --> - Fixed point: - Encoder (fixed): 496d928d46719161bc5c05600fc4de510d684e6e - Decoder (fixed): 496d928d46719161bc5c05600fc4de510d684e6e # Bug description There is a pretty evident porting mistake in EFAP function add_vertex_to_convex_hull_fx() as shown below ```c centroid[0] = Mpy_32_32( centroid[0], tmp32 ); // q27 move32(); centroid[1] = Mpy_32_32( centroid[1], tmp32 ); // q27 move32(); centroid[2] = Mpy_32_32( centroid[1], tmp32 ); // q27 <- BUG HERE move32(); ``` Not sure of the significance of the effect but probably can create some differences in creating the EFAP layout. <!--- Below are labels that will be added but are not shown in description. This is a template to help fill them. Add further information to the first row and remove and add labels as necessary. -->