A double-strength q-congruence for truncated basic hypergeometric sums

Let $n$ be a positive integer with $n\equiv 3\pmod{4}$, let $r$ be any positive integer, and let $\Phi_n(q)$ denote the $n$th cyclotomic polynomial. Then the conjectured q-congruence.

$$\sum_{k=0}^{rn-1}\frac{(q;q^2)_k^2(q^2;q^4)_k}{(q^2;q^2)_k^2(q^4;q^4)_k}q^{2k}\equiv 0\pmod{\Phi_n(q)^2},$$

and

$$\sum_{k=0}^{rn+(n-1)/2}\frac{(q;q^2)_k^2(q^2;q^4)_k}{(q^2;q^2)_k^2(q^4;q^4)_k}q^{2k}\equiv 0\pmod{\Phi_n(q)^2}.$$

This extends the preceding results for truncated basic hypergeometric sums in the case $n\equiv 3\pmod{4}$; the asserted congruences modulo the square of the cyclotomic polynomial remain presented as conjectural here.