Install these custom opensubtitles. but you have to uninstall you previous oepnsub first and it will work. 

 
Use manual search when auto-search brings up incorrect sub options.

1. Check the batteries.. Swap out with new ones.
2. Check to see if a custom keymap.xml is present or required.. Create or edit accordingly.

This shouldnt be.

But possible if u kept kodi and then updated android to 7.

Android 7 update needs a total clean install.

Try erasing all kodi and reinstall.

U may also want to ask in the himedia thread n see if other q10pro users have same problem.

keymap.xml

As long as the hardware remote is compatible with the device and doesn't work with Kodi.. Kodi allows custom keymapping. Where you can get the button codes and tell it what to do. Alternative, would be getting a different remote entirely.

this is very strange.

i hv been using q10pro android7 for 3 months with kodi17.0, 17.1, nothing of that sort.

once u clean install firmware and reinstall all apps, it should be fine.

i suggest u contact yr seller... maybe faulty remote.

or somehow u did something incorrect with firmware update, gone haywire.

or u hv some other device interfering with it.

i am sure it is not a kodi problem... u should get help from seller or other users.