Please find the snippet and microflow below however – If I run the app from version 8.8 its works fine !
Hi everyone,
We had a similar issue after updating one of our applications to Mendix 8.18.13 from 8.16. We had the following settings on a checkbox that is bound to a boolean attribute:
The setting “Auto-synchronize: Yes” produced the exact same stacktrace. Luckily, in our case setting this Auto-Synchronize to “No” does not have any impact on the required functionality of our application and gets rid of both the error message and the stacktrace.
UPDATE 22th Feb 2022:
Looks like my issue could have been resolved with the new release of Mendix 8.18.16, at least according to its release notes
“We fixed a bug with the Auto-synchronize option in online profiles that caused a crash when the action was used. (Ticket 138115)”
Perhaps updating to Mendix 8.18.16 will therefore also resolve your issue?