@jane I checked your project and you cannot see the issue because you only set the text. This only shows that Opens and Starts were triggered but doesn’t show if it was triggered twice and if the the text was actually set twice. To really see the issue you should use an Alert. If the Starts or Opens triggers twice then the alert will be called twice thus it will pop-up twice.
Here is a screen recording. You can see that the Starts and Opens were triggered twice thus the Starts and Opens alert popped-up twice. If you keep testing, you’ll notice that sometimes Starts is triggered 3x. And, if you remove Starts block then Opens gets triggered always twice or 3x.
Here is the link to a remix of your project. the only thing I added is an Alert.
https://x.thunkable.com/projects/5f6d0e3d8f8941615d84354f/67c4e6e8-69fa-454b-803c-d7a9f645e66c/blocks
You can also reference my original project to see this issue.
https://x.thunkable.com/projects/5f6ba95c59f6b6033531dbbe/541aba80-c79f-43f4-9d84-d30ce4d5c918/designer
Thanks,
Marco