SOLVED - Can armour and sit on horses, pigs, donkeys but cannot ride.

UPDATE: SOLVED - I have just (with YouTube help!) done a "Reinstall" of Minecraft Java and pressed the "Repair" option and it is working again as normal (in case anyone else has a similar issue). Thank you  Hello, Hope you can help! For some time now I have been able to tame, armour and sit on horses, pigs, donkeys etc. but cannot ride. The animal does not move. I noticed this was an issue resolved some years back with another user but, no matter what gamemode I am in e.g. survival, hardcore, creative etc. I cannot ride whatsoever. It was fine at the very start of the game (began playing in June 2019) but, since January 2020, no more riding is enabled - is there anything I can do with this glitch?  Thank you