Poe2 deleting spears

If you have a locked weapon set with a spear, and in the second weapon set you have another spear and sceptre, and after that you want to change spears while clicking on offhand, the new one disappears.

This is how i did it:
1.Lock weapon and wear sceptre in offhand of the second
https://imgur.com/a/Sx2x7gi
2.Put spear on main slot in the 2nd weapon hand
https://imgur.com/a/Ip0fXWB
3.try to change sceptre with a spear
https://imgur.com/a/6mnyLnS
4.New spear deleted
https://imgur.com/a/nhkWQMc

I can recreate this issue. Just lost my weapon due to this. The bug also seems to allow equipping a spear to your offhand slot which may have unintended consequences.