Conjectural overpartition congruence modulo 19

For a positive integer $n$, let $\overline{p}(n)$ denote the number of overpartitions of $n$, and let $\left(\frac{n}{p}\right)$ denote the Legendre symbol for an odd prime $p$. Congruence modulo 19.

$$\overline{p}(17^2\cdot 4n)\equiv 0\pmod{19},$$

where $n\equiv 3\pmod 8$, $\left(\frac{n}{17}\right)=-1$, and $\left(\frac{n}{19}\right)=1$. It involves $72$ residue classes modulo $2584$, which the source does not list. The source presents this as another conjectural Ramanujan-type congruence that cannot be proved by the methods in the paper; no resolution is supplied.