Html packing failed

I had encountered build failed when i try to deploy my package to HTML5, when selected LE HTTP request plugin. The error log is :-

error: Linking globals named ‘_Z14UELinkerFixupsv’: symbol multiply defined!
ERROR:root:Failed to run llvm optimizations:

I am testing this using a plain project, to deploy as html5. the deployment would success if no plugins turned on, but if i turn on LE Http Request plugins only (no addition blueprints), the build would then failed with the error mentioned above. Kindly refer to attached text file for the build message log.

I am currently using UE 4.19.2. Please help and advise.