[2021.4 - 471] String IOBoxes don't update unless deleted and re-created

Don’t know if it is the same bug or just something similar:
iobox

From the patch @benju posted here.
Tested with 1. 2021.4.0-605.
When vvvv is started by opening the patch the ioboxes are “broken”.
When first starting vvvv and then the patch they work.

Same happens with patch I posted here: