Hi There,
OK this is a bug that we are aware of and was reported by others this morning. The solution is to use a legacy version of psychojs Typed text in Text box doesn't appear in Pavlovia - #6 by Becca
In short, go to the publicaly linked repo I shared there and take a copy of the “custom-lib” folder and add it to your experiment. Then follow the stages in the linked post to manually export a html and edit the first set of lines so that the custom library is used instead of psychojs 2021.
Hope this helps!
Becca