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#1
Hi thelastbonbona,
It may not be an issue with the keyboard at all. You may try using a good-known keyboard with the system, if available; will help you to isolate the keyboard as the possible root cause. Alternatively, you may use this keyboard with another system to see if the issue duplicates.
If no extra computer/keyboard is available, you may check the 'keyboard/system' performance in 'Safe mode'. It is a diagnostic mode and may help us isolate if a 'program' is causing interference.
Do reply with the findings; will take it forward from there.