There has been some problems with some ILoqs specially the one in tau door it has been repaired once and the problem then was the overuse of alcohol on cleaning handles!
Please do not spray alcohol solution directly on doors and locks!
Also that door has “swollen” and that makes it difficult to open.
One other problem that causes this issue is dirty keys!
Please keep your key clean!
I will clean and try to repair that lock once again tomorrow hopefully it will work! I will buy a can of compressed air that we can use for that purpose. I will also try to sand down the door so it opens easy!
So once again: Keep your key clean and do not spray solvents directly on the locks!