Exposure Software Blow Up 3 won't work with whatever change was made in Photoshop 2023 last week.

[John31392680ca0m]

Had to use the 2022 version to get it to work.

[Ged_Traynor]

@John31392680ca0m did you try contacting https://support.exposure.software/hc/en-us

[John31392680ca0m]

Thanks, I tried reinstalling but it didn’t work.

[D Fosse]

As Ged says. It's the plugin vendor's responsibility to update their plugins for new PS versions. That's just the deal and how it works.