Solids vertices change at the time of splitting with surfaces or planes

At the time of splitting solids with planes, some edges are 'moved' and give place to new surfaces that I do not want to create in the first place. Has anyone faced this problem in the past or knows how to tackle it? Thanks for your help /emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20' />

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QuyNguyenDai

Yes, I have got the same issue for some time. Here're my tries:

Check the geometrical tolerance (pres O)
Try to isolate the volume which causes the issue by splitting solids
Try to work with surfaces instead of solid

luis.rodriguez

Thank you Nguyen-Dai! I have tried the 3 methods but I feel that once you have 'touched' the solids too much they somehow 'deteriorate' and they no longer allow you to modify them to your liking, which is very frustrating by the way. People of Altair, solids being modified and not complying with the original geometry is complicates the process of meshing complex parts, could anyone work to make this bug disappear? Thanks!

QuyNguyenDai

I could give a try if you can share your model.