Can you provide the error message and ML version ?

Can you try creating a dynamic system setting "switchtooldassembler" with value " true" in "Pega-IntegrationEngine" owning ruleset and try again ?

I faced same issue in 7.1.6.

Parse xml which uses Apply rule doesn't map all properties which got fixed after adding DASS mentioned by Sudharshan.

Article:

https://pdn.pega.com/support-articles/xml-parsing-rule-does-not-map-all-values

@sudharsan - We have fixed few parsing issues in Pega 7 by enabling the DSS you mentioned. However to me this sounds like a workaround that need a fix anyways.

Are future milestone releases fixing the parsing issue with the new assembler?

Yes, this is a workaround and I believe this has been acknowledged as a product bug. But I don't have any information regarding the exact ML release this bug has been scoped to be addressed.

We have similar issue in Pega 7.1.7, is there any hotfix available at this time or should go with work around ?

XML parsing logic is changed in Pega 7 compare to old versions, DSS only revert the parsing logic to older versions. Please raise a SR with exact issue new parsing logic, this may help them to resolve the issue with new parser and proivde the fix.

Thanks,

Dhev