Ha that’s good to hear !
Unfortunately, my Inputstream helper only offers me to revert to 4.10.1679.0, which may be too old because it won’t play anything after reboot.
How do I install Widevine 4.10.2252.0 ?
EDIT: found how, and it works !!! yay !!! Thank you @aLiEnHeAd
curl https://k.slyguy.xyz/.decryptmodules/widevine/4.10.2252.0-linux-armv7.so | sudo tee /home/osmc/.kodi/cdm/libwidevinecdm.so >/dev/null