I have been typing for many years but still, I have this problem whenever I type “your” I missed the “R” not sure if anyone here has the same problem.
Maybe, this is the answer:
I do not have this type of issue. There can be many many reasons.
Maybe run a grammar check on what you write as that might pick it up.
I sometimes do that (absentmindedly) with “though” and “thought”
hahah me too. We face same situation.
your left hand index finger may be shorter than others.