AKAI Professional MPK 261

The drum pads are amazing and fun to use.
Nice Mod/Pitch wheels.
The Keyboard has been manufactured with appallingly low standards and quality regarding the most essential aspect of any keyboard instrument.

Cosmetically, the AKAI looked perfectly fine with no visual damage and no damage to the inner packaging.
After connecting the keyboard and trying it for the first time, I was disappointed to see and hear that the keyboard has a serious technical flaw.
The MPK261 is suffering from a number of serious velocity and sensitivity issues. Certain keys when pressed gently will output maximum or erratic velocities while others respond more normally.
The notes D1 and G#4 in particular will trigger themselves multiple times at maximum values after only being pressed once. This renders the keyboard completely unplayable since it is impossible to play with any dynamic control.
I recently had very similar problems with a brand new Novation keyboard and more interestingly it was the same key too.
I decided that Akai would be a better replacement, but now I feel that my money has been wasted again.
I am extremely disappointed as I expected so much more from Akai and a keyboard of this caliber.
The Thomann technical department advised me to reset the keyboard to the factory default again, and to test with separate MIDI cables. This unfortunately made no difference.

Demonstration of the techincal issue - https://www.mediafire.com/file/t5wgqgsyaaarle4/MPK261_Fault_2022-12-01_17-39-25.mkv/file