STEP Export - Geometric issues

Dear community,

I am used to export my parts to STEP (AP214) format, and send them to our suppliers. I just realized exported STEP have bad geometries on this specific project. I attached two screenshots for comparison on a specific feature. 

Some remarks :

- It appears on small features, especially fillets.

- Fillet are lacking, or the have small "spikes" on them.

- The original part is made only of surfaces. Everything seams to be correctly stitch together, only one surface.

- I tried to look for tolerance settings, without success.

- I increased the picture quality setting of Solidworks, it does not seam to be a display error. I see the same issues with e-drawing.

Do you have any suggestions to export an accurate STEP file ?

Thank you.

SolidworksImport/export