Unable to use weapons，Herald displays incorrect weapon type

After equipping the weapon, it cannot be used normally, but both weapons are normal if used alone. However, as long as they are equipped together, it will prompt that the weapon type is incorrect
If you switch to other weapons with the same name, there will be no problem
I don't know how to upload pictures.
You can check the characters under my account, the bug occurred on the seasonal characters under this account,
I am currently equipping the character with those two weapons
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The character configuration in this POB, all the Herald Gem are not usable, and it prompts that the weapon type is incorrect
https://maxroll.gg/poe2/pob/clort00q

I have the same issue with my crossbows.

The 2nd slot is not working and it says I can't use this item. But only a specific combination of two crossbows. I tried other bows from same type and they all worked as expected.

The weapons don't have attributes. I used weapon set skill points, but attributes don't change, so that I don't miss requirements.

It seems like a bug. I reported it ingame. Here's a screenshot.

Tried this?

Go to skills.
Tap arrows with Herald.
Extra window will pop up with detailed info.
Go to the bottom, mark both weapon sets.

Okay, I guess I found out.

In my case it didn't work because I had the same advanced rune (saqualas rune of the sky) socketed in both weapons. I don't know if it is intened by GGG, but for me it seems like a bug, because it's not in the same weapon.

Hope this helps.