I have not personally experienced this issue, but it's possible that others may have encountered it. When it comes to troubleshooting issues with scripts in Webflow, it's important to consider a few factors.
Firstly, ensure that the script you're using to check/uncheck checkboxes is written correctly and doesn't have any syntax errors. Even a small mistake, such as a missing semicolon or a misplaced bracket, can cause the script to stop working.
Secondly, double-check that the script is properly linked to your checkboxes. Make sure that you've assigned the correct class or ID to the checkboxes in your Webflow project, and that this class or ID is correctly referenced in your script.
It's also worth mentioning that if you're using a custom script within Webflow's Custom Code setting, it should not be conflicting with any other scripts present on your site. Make sure there are no naming conflicts or duplicate scripts that could potentially interfere with the functionality of your checkboxes.
If you've verified these factors and your script is still not working, there may be a compatibility issue between the script and Webflow's Custom style setting. In this case, I would suggest reaching out to Webflow support or the Webflow community forums to see if anyone else has encountered a similar issue and if there is a known solution.
Additionally, you can try troubleshooting the issue by temporarily removing the Custom style setting to see if the checkboxes start working again. This can help identify if the issue is specifically related to that setting.
Remember, providing specific details and sharing your code with the community can greatly assist in resolving the issue, as it allows others to better understand the context and offer potential solutions.