Problem with RouterOS upgrade/downgrade

Hello.
I am very confused.
I trying upgrade my firmware on my RB1100AHx2 from 6.42.2 to latest => 6.42.4.
When I click on “Download&Install” button, firmware is downloaded to internal storage (~52% free space) and router rebooted. BUT, after it start, firmware is still on 6.42.2 version.
My log does not contain any usefull info.
Manual upgrade or downgrade have same results.

Can someone help me, where is problem?
(this is first time, after 3 years, when I have problem with this)

LOG:

[admin@MikroTik] > /log print 
16:33:02 system,info 
16:33:02 system,info 
16:33:02 system,info 
16:33:02 system,info 
16:33:02 system,info 
16:33:02 system,info router rebooted 
16:33:12 interface,info Administrativa link up 
16:33:12 interface,info Ucebne link up 
16:33:12 interface,info Kabinety link up 
16:33:12 bridge,info "br-administrativa" mac address changed to 6C:3B:6B:84:37:53 
16:33:12 bridge,info "br-ucebne" mac address changed to 6C:3B:6B:84:37:52 
16:33:12 bridge,info "br-kabinety" mac address changed to 6C:3B:6B:84:37:52 
16:33:15 interface,info ether2 link up (speed 100M, full duplex) 
16:33:15 interface,info ether3 link up (speed 1G, full duplex) 
16:33:15 interface,info ether4 link up (speed 100M, full duplex) 
16:33:16 interface,info ether1 link up (speed 1G, full duplex) 
16:33:16 interface,info ether5 link up (speed 1G, full duplex) 
16:33:16 interface,info ether7 link up (speed 1G, full duplex) 
16:33:16 interface,info ether8 link up (speed 10M, full duplex) 
16:33:17 system,info,account user admin logged in from 158.193.218.157 via winbox



[admin@MikroTik] /system routerboard> print 
       routerboard: yes
             model: 1100AHx2
     serial-number: -deleted-by-me-
     firmware-type: p2020
  factory-firmware: 3.24
  current-firmware: 6.42.2
  upgrade-firmware: 6.42.2

have you tried to do it via CLI?
if so, can you paste output here?

Thank you for your reply.
Meanwhile, I solved the problem.
I do not know how. But maybe it had something to do with some “package” I did not need (I deactivated them more).
Then, when I tried to upgrade, everything was fine.

[admin@MikroTik] > /log print 
17:32:03 system,info installed routeros-powerpc-6.42.4 
17:32:03 system,info installed ntp-6.42.4 
17:32:03 system,info installed multicast-6.42.4 
17:32:03 system,info router rebooted

Thx, again.