Check the assigned profile, base mapping and modifier layer. Test one ordinary key or mouse action in a safe application. Special Actions, held states and the foreground app can affect behavior.
FakerInput is optional and is required only for setups that use its output method. Check its setup card and the relevant settings. A macro that launches programs should be reviewed before use, especially in a downloaded profile.
Still stuck?
Prepare a support report or return to the troubleshooting hub. A browser controller test can help observe input, but does not verify Nexus mappings, virtual output or every feedback feature.