Ruida 6445G, auto focus, not working after v15.01.15

After I update my Ruida RDC6445G, all versions after v15.01.15 - auto focus button on controler not working (how I repair - or setup this option)
I try versions v15.01.16, v15.01.17 and v15.01.18 (in download descriprion says is v15.01.19).
Only minus of version v15.01.15 to newer versions is that when I use air assist! In version .15 air assist valve is turned on from starting a job to end job, and in newer versions of FW air assist is only turned on when laser is on (when laser free travel between cut, air valve is closed)!
Please help, if maybe someone have working newer wersion!

LP, chris

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