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System Identification - Matlab 2023a not launching

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I am using a student licensed Matlab version 2023a. The license allows me to install System Identification toolbox. Currently, the toolbox is not opening. As I click on it through Apps panel or using the command systemidentification in command window, the app does not open.
I am pretty sure that the app is installed because I can see it in the Apps panel and when I use 'ver' (below you can find the list of all toolboxes) it shows that it exists. I have already tried to uninstall the app and install it back but this did not solve the issue.
Your help is much appreciated. Thanks in advance.
MATLAB Version: (R2023a) Update 5
MATLAB License Number: ------
Operating System: -----
Java Version: Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
MATLAB Version 9.14 (R2023a)
Simulink Version 10.7 (R2023a)
Aerospace Blockset Version 6.0 (R2023a)
Aerospace Toolbox Version 4.4 (R2023a)
Communications Toolbox Version 8.0 (R2023a)
Computer Vision Toolbox Version 10.4 (R2023a)
Control System Toolbox Version 10.13 (R2023a)
Curve Fitting Toolbox Version 3.9 (R2023a)
DSP System Toolbox Version 9.16 (R2023a)
Database Toolbox Version 11.0 (R2023a)
Deep Learning HDL Toolbox Version 1.5 (R2023a)
Deep Learning Toolbox Version 14.6 (R2023a)
Econometrics Toolbox Version 6.2 (R2023a)
Embedded Coder Version 7.10 (R2023a)
GUI Layout Toolbox Version 2.3.1 (R2016b)
GUI Layout Toolbox Version 2.3.6 (R2023a)
Global Optimization Toolbox Version 4.8.1 (R2023a)
Image Processing Toolbox Version 11.7 (R2023a)
MATLAB Coder Version 5.6 (R2023a)
MATLAB Compiler Version 8.6 (R2023a)
MATLAB Compiler SDK Version 7.2 (R2023a)
MATLAB Report Generator Version 5.14 (R2023a)
MATLAB Test Version 1.0 (R2023a)
Mapping Toolbox Version 5.5 (R2023a)
Mixed-Signal Blockset Version 2.4 (R2023a)
Model Predictive Control Toolbox Version 8.1 (R2023a)
Model-Based Calibration Toolbox Version 5.14 (R2023a)
Motor Control Blockset Version 2.0 (R2023a)
Navigation Toolbox Version 2.4 (R2023a)
Optimization Toolbox Version 9.5 (R2023a)
Parallel Computing Toolbox Version 7.8 (R2023a)
ROS Toolbox Version 2.0 (R2023a)
Signal Processing Toolbox Version 9.2 (R2023a)
Simscape Version 5.5 (R2023a)
Simulink 3D Animation Version 9.6 (R2023a)
Simulink Check Version 6.2 (R2023a)
Simulink Code Inspector Version 4.3 (R2023a)
Simulink Coder Version 9.9 (R2023a)
Simulink Compiler Version 1.6 (R2023a)
Simulink Control Design Version 7.0 (R2023a)
Simulink Coverage Version 5.6 (R2023a)
Simulink Design Optimization Version 3.13 (R2023a)
Simulink Design Verifier Version 4.9 (R2023a)
Simulink Desktop Real-Time Version 5.16 (R2023a)
Simulink PLC Coder Version 3.8 (R2023a)
Simulink Real-Time Version 8.2 (R2023a)
Simulink Report Generator Version 5.14 (R2023a)
Simulink Test Version 3.8 (R2023a)
SoC Blockset Version 1.8 (R2023a)
Spreadsheet Link Version 3.4.9 (R2023a)
Stateflow Version 10.8 (R2023a)
Statistics and Machine Learning Toolbox Version 12.5 (R2023a)
Symbolic Math Toolbox Version 9.3 (R2023a)
System Composer Version 2.4 (R2023a)
System Identification Toolbox Version 10.1 (R2023a)
Text Analytics Toolbox Version 1.10 (R2023a)
UAV Toolbox Version 1.5 (R2023a)
Vehicle Dynamics Blockset Version 2.0 (R2023a)

Accepted Answer

Star Strider
Star Strider on 4 Nov 2023
Try running these from a script or your command window —
rehash toolboxcache
It might also be necessary to run:
as well after that.

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