It's a bit weird but since yesterday I have noticed some hotkeys (1-7 to 1-9) have been triggering out of nowhere without me pressing them. I have like 2 folders of RO, one in Steam folder and the other in C:/, so I can dual client with different resolutions, and it only happens with the C:/ client. It's very... unusual, I know, but I thought I would report anyway since there might be a simpler solution than just reinstalling and updating everything from scratch.
And no, I don't use any 3rd party program for macros and my data.grf is only modded to have simpler effects from wizard skills to reduce visual lag and shorter sound effects for Bard & Dancer songs.