keyboard hotkeys with ctrl partially working

Hello
Just installed win 10
I have 4 input languages: English, Hebrew, French France, French Canadian multi
I can rotate the input with shift leftAlt and have access to these languages in sequence
But when I assigned ctrl hot keys (0,1,2,3 in the above language order) to jump directly to a language, not all of them work, but only English and French
ctrl0 switches to english
ctr1 does nothing
ctrl2 switches to French
ctrl3 does nothing
Could someone suggest how to fix this? I never encountered this issue with win vista/7/8/8.1

Your help is very much appreciated

Thanks Ken,
Nirsoft does not find any used crtl+<number>
I thought it might be chrome who's using this combination for tab switching but even after uninstalling it (with revo) the issue persisted. Even with just English with ctrl+0 and Hebrew is ctrl+1, only ctrl+0 works: I can go Hebrew with shift+left alt and back to English with ctrl+0. Also, the hotkey ctrl+1 becomes unassigned after reboot
screenshot below

Thaks for bothering. Will test them all and report here

AndreTen said:

Do other combos work? like Ctrl+5, 6 etc? Some laptops can have Ctrl and Fn reversed or Fn sticks...

The shoth answer is NO
Test results with two languages: English and Hebrew; leftAlt+shift set as sequential switch
I can set English to any ctrl+<num> and it will always switch correctly from Hebrew to English (and disable chrome tab switch for that <num>

No ctrl+<num> or ctrl+shift+<num> or (with disabled sequential) leftAlt+shift+<num> allows to switch to Hebrew. The only mean available to me to have Hebrew is the leftAlt+shift sequential shift

The long answer is that Surprisingly, yesterday I could switch *once* to Hebrew with ctrl+<a num which I don't remember>

Caledon Ken said:

Does you Asus have nVidia? Did you look in GeForce experience.

Would be interested in AndreTen idea. Do the other number keys work?

Ken

NO, no nVidia but Intel

First my apology: after having failed to rename my home folder from windows assigned stupid name to my own I reset the computer to 8.1 and this is my os now. Before the abortive installation of win10, I had chrome and 4 languages on 8.1, all directly selectable with ctrl+<num>, num=0..3

I have no sticky keys but only "hear a sound on caps/num/screen lock"

When I assign a num to a language, Chrome does not react to this shortcut (does not jump to the corresponding tab), when the hotkey (language switch) works or when it does not work.

I tried to add French and it works on any <num>, just like English

Tried Georgian - does not work on any <num> just like Hebrew though it's LTR

Finally I found: I need to "add input method" whatever it means and then it works for Canadian and Hebrew just as I want.

Thanks you very much Andre, your questions did guide me