sxt G-5HPacD no wireless interface

Hello, i have upgrade the sxt G-5HPacD with RouterOs 6.19 (all packages)
In system packages is the wireless interface enabled.
But no wireless interface to see.

I have done downgrade to 6.18
Wireless interface are present.
Is this a bug?
sxt-ac2.png.jpg

Upgrade with this :

http://download2.mikrotik.com/routeros/6.19/routeros-mipsbe-6.19.npk

And enable wireless-fp package

Great Sybertod the problem is solved.