Chaps

Have you tried holding down the Windows key and using the arrow keys?

I would check the tracks and buses to see if there were any automation nodes past the end of your project, and delete them.

I did it by selecting the My Products option in the Plugin Alliance Installation Manager. It has to be activated from your account page on the website after installation.

I have nothing to offer than a comment about your NVIDIA graphics card. For years NVIDIA users used GeForce Experience to keep their card's drivers up to date, and it was designed to optimize drivers for games. It is being phased out and replaced by the NVIDIA App, which gives the user the choice between GeForce Game Ready Drivers or GeForce Studio Drivers which "Provides the ultimate in functionality and stability for creative applications." There is also support for RTX cards. "NVIDIA RTX Drivers" "Additionally provides stability, performance, and certification for professional and creative applications." I don't know if it would have any affect on your problem but the NVIDIA App is the best way to keep your video card's drivers up to date.

Are the two guitar tracks the only tracks playing? Have you tried reversing the phase on one of the tracks?

Do not discount msmcleod's idea yet. As an experiment I exported a song in stereo and played it in Winamp (my audio player of choice) and it played normally in stereo. Then I changed my Windows Audio setting to Mono and rebooted. My Cakewalk project still plays normally in Stereo but when I play the exported audio file in Windows Media Player the song plays in Mono. So double check your Windows Audio Settings and make sure it is set to STEREO so you can either correct it or rule it out. Don't forget to reboot if you make any changes. Your screencap doesn't show the Stereo/Mono option but it should be in there somewhere. We may be using different Windows versions. Here is what it looks like in my Windows 11:

Are you bouncing everything to a stereo track and then exporting that track or exporting the entire mix? Can you post a screen capture of your export options window?

Try RIGHT-Clicking the Smart Tool Icon and selecting Enable All. Then the icon, and function, will change according to where you click. If you don't want the Smart Tool to do those things you can disable them in that menu.

It does have some nice features. The only things I can think of to mention are that it uses software (Focusrite Control 2 ) to control direct monitoring, and other mixing tools. I like that kind of control with my Steinberg UR24C (which also has a dial on the front for direct monitoring blend) and Focusrite Control 2 looks more sophisticated than what I use with my UR24C. I have seen one review of a similar Scarlett interface and the reviewer hated using software for direct monitoring and preferred using a dial on the front panel. Also, the USB protocol for the Scarlett 4i4 is USB 2.0 and not the faster USB 3.0, which may or may not make any difference on your system.

UJAM Finisher Micro? It's another of their freebies. I have it but have never used it. UJAM Finisher Micro

It's an interesting plugin but I'll have to spend a lot more time with it before I know how useful it will be for me. Block chords? Arpeggios? Mixed block chords and arpeggios? Single notes? It seems to react differently to all those, but it does have interesting sounds and a nice GUI so it's just a matter of putting in the work so I'll know what it's going to do before it does it.

Yeah, Clips Muted, Position Locked, Data Locked.

Can you post a screenshot of what you are seeing?

I believe your interface uses only software to control the Input Monitoring balance. The software app is called UAD Console. Below are links to the page where you can download UAD Console and its manual, and one of many YouTube videos that explains its use. Also search out other Videos on YouTube about UAD Console. There are a LOT of them. This kind of software can be very useful once you get the hang of it. UAD Console Get Started with UAD Console Video

What kind of Audio Interface are you using? Are you monitoring through headphones? Are you using Direct Monitoring? Many audio interfaces have a knob, or software control, that balances the audio between what is coming in through the Inputs and what is coming out of the DAW in the headphones output. If this is set wrong it can easily cause the problem you are having, if you are monitoring through headphones.