pressure pen doesn't work - CLIP STUDIO ASK
if that is not the issue, clip studio paint may have not selected your product right. go to "File" at the top right, go to "preferences, and tablet. if you are using a non-pc, tablet, make use you have Wintab ticked, if not, tick Tablet PC. if this does not fix your problem, and are using a wacom tablet, you might need to set 1024 pressure levels.
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