Hi Terison,
There was a similar issue introduced in TBC v5.20 with text being flipped upside down in South Azimuth, South-West positive coordinate systems. That issue has since been addressed in TBC v5.20.2 patch, but it seems we overlooked the issue in the Sheet View.
I've entered a bug for our developers to get this addressed in our next release. In the meantime, the text can be flipped to the correct orientation using the following steps:
- Open the 'Advanced Select' command.
- In the 'Data type:', choose 'CAD Text'. Press 'Apply'.

- Open 'Properties' (press F11).
- In the 'Appearance' section, change the 'Auto flip' section to 'Yes' and the 'Justification' section to 'Bottom right'. (Note: You may have to change the justification one by one for some text boxes)

- Repeat steps 1-4, but this time choose 'CAD Multiline Text'.
Alternatively, a simpler method would be to download TBC 5.10 and use it for drafting work, though you will not be able to use the features introduced in 5.20.
-Josh