what are these point refer to?

[Mohamed_Faramawy]

they are appears in the corners of the finishing layers, accurately, the layer function is substrate 

[ToanDN]

Did you use Linework tool on these lines?

[Mohamed_Faramawy]

no

[chrisplyler]

Are they analytical elements? Open up the visibility graphics settings for the view, check on the analytical tab, and make sure nothing is checked.

[Mohamed_Faramawy]

no. i closed all the analysis from the vg and it's still appearing