Solution
This issue can occur when an incompatible version of InstrumentStudio is installed on the computer.
- Verify the installed version of InstrumentStudio.
- Check whether InstrumentStudio 2026 Q2 or Q3 is installed.
- Uninstall InstrumentStudio 2026 Q2 or Q3 if present.
- Install a version of InstrumentStudio that is compatible with TestStand 2026 Q1.
- Restart the computer.
- Launch TestStand 2026 Q1 again.
InstrumentStudio is commonly installed as a dependency of the following NI drivers:
These drivers are frequently installed when using:
- NI PXI Oscilloscopes
- NI PXI Source Measure Units (SMUs)
- NI PXI Vector Signal Transceivers
TestStand 2026 Q1 is incompatible with InstrumentStudio 2026 Q2 and Q3. This issue was resolved in TestStand 2026 Q3.