Error "Object reference not set to an instance of an object" when trying to add WorldServer TMs to a project (Studio 2021 SR2; WorldServer Compatibility Pack 16.9.1783)

Question

After updating to Studio 2021 SR2, it doesn't seem to be possible to add WorldServer-TMs to a project. Connection to the server is established, but whenever I try to add a TM, I only get the error "Object reference not set to an instance of an object". 
 I've removed the WorldServer Compatibility Pack via the Control Panel, repaired the Studio 2021 SR 2 installation, and installed the current WorldServer Compatibility Pack (version 16.9.1783) for SR2, but that didn't help.

Oana Nagy · Answer

Lisa Schultz Support Case Id : 00642171. Support case has been logged for your assistance. Please check your SDL Community email address for updates.

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Error "Object reference not set to an instance of an object" when trying to add WorldServer TMs to a project (Studio 2021 SR2; WorldServer Compatibility Pack 16.9.1783)