Cast on Minion Death Malfunctions on One Weapon Set

I'm using the Cast on Minion Death skill gem. Under certain circumstances, one weapon set shows the error "Missing Jewel Socket" (This is my translation; the original English text in the game may differ as I'm playing with another language setting), while the other works perfectly fine. Purchasing a new Cast on Minion Death gem fixes the issue, and I've already bought three of them for this problem.
Additionally, I noticed a similar bug was reported for Cast on Critical back in September 2025. The workaround mentioned (selecting the skill in the socket and switching weapon sets) does not resolve this issue for me.