Adobe Acrobat, all line drawing functions, I can start a line, etc., but cant get the app to stop the function. I have to force quit the application. I am updated to the latest version, and I have used the repair function

Reposting ​@FloriDUH JBot response as a temp fix. 

Temporary workaround

Menu → Preferences → Security (Enhanced)

Turn off both Protected Mode and Run in AppContainer 

Relaunch Acroboat

I have the exact same issue.

Same issue here. Cannot complete any shape, callout texts, etc.

The very same thing has happened to me here, drawing a shape or line cannot be completed as the left click of the mouse isn’t registered.

Since this started, I am also getting issues dragging pages from the page thumbnail tab to the page thumbnail tab of another PDF, sometimes the first 1 or 2 clicks of the mouse to drag are not registered on Adobe.

Temporary workaround

Menu → Preferences → Security (Enhanced)

Turn off both Protected Mode and Run in AppContainer 

Having same issue. Started about 48 hours ago. Mouse clicks and keystrokes hit or miss in registering. Very annoying and disruptive.

I am also having this issue. It started two nights ago. I repaired the installation twice and also uninstalled and reinstalled. It worked for about 6 hours then started doing the same thing. I initiate the line but cannot complete it. This goes for all comment drawing tools.

I am having similar problems, suddenly I cannot draw a circle or rectangle. Yes the tools are part of Comment. When I click to complete it just disappears. I have never been able to use cloud and have used freehand pencil for years as a work around but this is super annoying. I like to be able to place a circle.