actually I create a video and I have this problem: I can't change the font colours anymore. I can't eighter open the properterties nor change the colour. I need some numbers in different colours. What can I do? I can change the colours of objects without problems.
If you've opened a project from an earlier version in 3.6, you will need to delete the text box and add a new one.
The new font system will not allow you to edit the font, colour and alignment of text from the older versions.
The Historic Fonts article will go into full details