Hex text bar in color palette is blocked

I am making some assumptions about what you mean. It would help significantly if you could show a screenshot of your issue, or at least a more specific description including the apps involved.

Take a screenshot on Mac - Apple Support

I assume you mean the macOS Color Picker dialog box, that by 'transparency bar' you mean the opacity control slider, and you mean that it's blocking the field for entering a hex value. In that case, I cannot replicate the issue that you describe.

I tried in a native Apple app (Pages) and two 3rd party apps (Graphpad Prism and MS PowerPoint) that support the opacity setting (not all of them do).

Absent more specific information, here are general troubleshooting steps.

Have you rebooted your Mac? If not, that's the first step. If that does not help, then see if the problem is present when you boot in safe mode. That process performs some system cleanup and clears caches, and also disables 3rd party extensions that may cause problems.

Start up your Mac in safe mode - Apple Support

If that does not correct the issue, test in a new user account. A newly-created user account will have all settings at default, and if the issue does not occur in that new account then it provides guidance on what may need to be changed to correct the issue.

Add a user or group on Mac - Apple Support

Once the testing is complete, the new account can easily be deleted.

Delete a user or group on Mac – Apple Support

Those steps will help to isolate the problem.

It might help to download and run EtreCheck, written by a long-time forum member. The free version is fine. Post the full report using the Additional Text button. No personal information is revealed. 

using https://autodessys.com/

on a Studio Mac. m1 ultra. Dell monitors. (tried various screen resolutions)

worked fine in OS25. I skipped OS26 as I had at home and didn't like it.

tried restarting. tried safe mode.

haven't tried new user.

I gathering the idea it could be the app itself. I'm contacting them now.

they may have not coded in this new OPACITY bar?! which could be interfering w. it.

As a test, open Settings/Appearance/Text highlight color/Choose Color… and see if you have the same problem. If not, it would seem to be the app.

tested, works fine. so its the app itself. thanks, narrows down my efforts.

1990 markdz wrote:

no matter how many times the mouse 'move' arrow comes up to help expend, its not moving.

Not sure if this is what you mean, but does making the popup window longer help?

Regardless, the behavior you show is not normal. Let me ask again – in what application(s) are you seeing this? Have you restarted your Mac? Tried in safe mode? Tried in a new user account?

no matter how many times the mouse 'move' arrow comes up to help expend, its not moving.

I'm not seeing the problem.

Out of curiosity, what app are you in?

and Vray as the rendering package. hmm. maybe an update is available. will check.

expanding at the corners (when it allows) doesn't help. I get a line w/ arrow up/down around the opacity. but can't move anything. this is driving me insane. so odd.

You're welcome.