pencil tool stroke issue

[15FD2]

when i make a stroke with the pencil tool, (because i prefer straight width lines)
it does this weird folding thing as in the picture

[kglad]

check (and adust) your pencil mode (in the tools panel after selecting the pencil) and check (and adjust) your pencil stroke style (in the properties panel)

[AgrisCaurs]

You can also turn off pressure sensitivity for the normal brush or fluid brush if maintaining width is the only issue.