you can't type anything while in normal mode, but you do can put numbers which makes command like "3d", or "5G" impossible to use, not sure if it's just a bug on my end, but it's happening to me right now.
What version of geany-plugins are you using? From the description to me this bug seems like https://github.com/geany/geany-plugins/pull/820 which should be fixed in newer versions.
Closed #899.
Assuming this is a duplicate of #820, closing.
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