When I run any version of JJ1, including HH95, on Dosbox, there is a really strange issue with the CTRL & ALT key configurations. But it only happens with the right alt key.

I'm on Windows 10.

Whenever I press ALT, Jazz jumps, but the weapon select also happens at the same time. So DOSBox is registering the CTRL key alongside the ALT key, every time I press RIGHT ALT.

I tried the key configuration in the main menu. Every time I push ALT, it comes up as CTRL. This doesn't happen with LEFT ALT.

Tried the DOSBox keymapper, nothing is off there.
Tried different versions of DOSBox, same problem.
Tried uninstalling & reinstalling Jazz, same problem.
Tried online emulations of Jazz running DOSBox, same problem.

This ONLY happens in JJ. No other game has this problem.

Is this a common problem? How do I fix it?

HELP!