Localized files are now being delivered even though the condition for the feature does not match the language of the machine. Our Chinese runtime files are being delivered and the Arabic files are being delivered to the same location. The machine that the product is being installed on is English. The features that deliver the Chinese and Arabic files test the UserLanguageID against the codes for Chinese and Arabic. It is as if the conditions are always evaluating to True and the files are always delivered. We have isolated the problem to builds after December 2019. Before that we never had this problem. Neither the product .ism file nor the .dim files that contain the localized files have changed. We were wondering if some Windows Update may be causing a problem. Has anyone else seen something similar?