Adobe LiveCycle Designer has been decommissioned back in 2018ish. I know it is a standalone desktop application and you can technically still use it but you really should move to the latest version of the product, which is probably where your bug is coming from.
There is a newer version of the product called Adobe Experience Manager Designer which can be sold as part of the enterprise form solution or as a standalone like LiveCycle Designer was back in the day.
Check out this FAQ sheet for more details around the new AEM Designer.
Hope that helps!