edit file in another computer

[animKitty]

Hi, I was animating on TVPaint 11 with my workplace's computer. I tried to open the same file on my computer with my personal TVPaint 11 license, I can see all drawings and layers, but cannot edit them (eg. draw over, transform, erase, change color.)
Is this a protection in the file that prevents me to edit? Is there a way to remove it so that I can edit the file on my personal computer?

Thank you.

[Dean]

Hello, do the computers have different editions of TVPaints (for example your work PC has Professional but you have Standard)?