My project won't render as any other tempo besides 90

[the black ryvius]

The piece is in a tempo of 80 BPM, but then I changed it to 90. Now when I change back to 80 and go to render, it permanently stays as 90.

[musikbear]

The piece is in a tempo of 80 BPM, but then I changed it to 90. Now when I change back to 80 and go to render, it permanently stays as 90.

Is strange unless you have either made a automation yourself, OR have imported midi-notes into the project, but try this:
Right-click the BPM-gadget, and from the context-menu, chose Remove-all-global-automation
Let us know, if it fixed it

[the black ryvius]

The piece is in a tempo of 80 BPM, but then I changed it to 90. Now when I change back to 80 and go to render, it permanently stays as 90.

Is strange unless you have either made a automation yourself, OR have imported midi-notes into the project, but try this:
Right-click the BPM-gadget, and from the context-menu, chose Remove-all-global-automation
Let us know, if it fixed it

It worked. Thank you very much