Solved
TouchGFX-4.12.3 Designer has bug in TextArea wildcard initial resource value
For TextArea with wildcard initial value from resource ID is not displayed.
Single use value is working
Martin KJELDSENBest answer
Principal III
Dec 5, 2019 10:59 AM UTC
This was a bug that's been fixed for 4.13.0 which is out this december.
/Martin