Are you asking about Lightroom (Lr icon) or Lightroom Classic (LrC icon)? What version NUMBER?
Lightroom Classic 11.4.1
That is not normal behavior. I recall seeing a few reports of this in the past, but I could only find one (with no solution):
Try resetting LR's preferences:
LR sometimes soils its preferences file, and resetting it can fix all sorts of wonky behavior. That article explains how to restore the old preferences if resetting doesn't help.
To help others who might encounter this, please let us know whether or not this fixes the problem.
Hello John, Thanks for your answer, I reseted LR preferences, but it doesn't fix the problem..
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Does the problem occur when you use the numbers above the letters and punctuation? Does the problem occur when you use the number pad on the right?
And are you on an AZERTY keyboard?