वात्स्यायन कामसूत्र (सान्वय सम्पूर्ण हिन्दी अनुवाद एवं सविस्तार व्याख्या - पं. रामानन्द शर्मा)

ं भावं च तत्रोपलक्षयेत् । यथा पारदारिके वक्ष्यामः ॥ २१ ॥-> completely clear. Line 34: विदितभावस्तु व्याधिमपदिश्यैनां वार्ताग्रहणार्थं स्वमुदवसितमानयेत् ॥ २२ ॥` -> completely clear.

Every single other sutra is the standard, 100% correct Kamasutra sutra text!
Now look at Sutra 12 in the Kamasutra (3.2.12):
The standard sutra is:
ततः शनैरेकैकामङ्गुलिमभिमृशेत् ॥ १२ ॥
Wait, why does the print look slightly odd on रेकैका?
Wait, look at रेकैका:
Is it रे then कै then का?
Wait, look at रे: in this font, does रे have anything?
Wait, let me look at रे in other places:
Line 3: धीरे धीरे -> धी रे धी रे.
Look at रे in धीरे: it is a simple र with े!
Now look back at Line 2:
Wait! After नै, look at that letter:
Is it क?
Wait, why would it be क?