Giant's blood and "shyaba temple maul"

With the "Giant's Blood" stone upgraded on the warrior class and an axe "shyaba temple maul" equipped, the attack speed increases as expected.
But when using a dash or reducing the mana level to 0, the attack speed is reset to the BASE VALUE. At the same time, the information in the skills does not change.
Attack speed returns only after using a combination such as (not the first time): use a dash, then use several auto attacks or several other skills.

can confirm, having the same issues, I tested it with all sorts of different maces still the same, attack speed changes for no reason, tested in hideout.

BUMP!

can confirm the same issue, attack speed from Shyaba two hand mace in combination with Giant's Blood / dual wielding is bugged.

It's an interesting interaction, but with these inconcistencies its currently not really playable for me :(