Thank you for your patience all this while.
This issue is now fixed in the latest update (Id 14.0.1) of InDesign CC.
If you are unable to see the update notification yet, open the menu (three dots) from the top-right of Creative Cloud desktop application and click on ‘Check For App Updates’.
Once the update button is shown against InDesign CC, click on the button to update your InDesign to Id 14.0.1 for the fix of the issue.
Do let us know in the comments, if you face any problem with the new update.
List of fixed issues can be found at: helpx.adobe.com/indesign/kb/fixed-issues.html
InDesign TeamAnonymous supported this idea ·
An error occurred while saving the commentAnonymous commented
As other recent comments state: this is still an issue with 15.1.1.
Activating the text box and clicking within it to change to text cursor causes a significant lag, to the point of being unusable.
I had to downgrade to 14 to avoid this.