The error "An invalid input was received by a TEXT routine" is thrown in Managed NX when creating new parts e.g. by performing an import using 'File->Import Assembly into Teamcenter' or by creating a new revision using 'File->Save As->New Revision'
The issue could be related with an out of date client cache in Teamcenter and could be solved by regenerating the client cache by opening a Teamcenter command prompt and execute the following commands:
bmide_generate_client_cache -u=<user id> -p=<password> -g=<group> -mode=delete -cache=all -model_file=%TC_DATA%/model/model.xml -target_dir=%TC_DATA%/clientcache
bmide_generate_client_cache -u=<user id> -p=<password> -g=<group> -mode=generate -cache=all -model_file=%TC_DATA%/model/model.xml -target_dir=%TC_DATA%/clientcache
Notes