Also, a new build has been dropped on itch.io fixing a few problems on builds with networking support (although the Vita and Switch builds don't use it because it's not enabled yet for compilation in the current builds).
There's a lot of improvements and bugfixes! Check it out: https://superfury.itch.io/unipcemu/devlog/394925/unipcemu-build-20220619-1915-is-now-live
It also has much improved OPL2/adlib emulation (with some slight hardware bugfixes) and added support for playing VGM files for the adlib and game blaster sound cards (and compatible cards).
After a bit of work in recompiling the app for Vita and Switch with networking support now enabled, it's now available! The new quick fixes are now added to the above news post and available on the itch.io site as the latest executables for PS Vita and Switch!
, can't currently verify it running still on the PS Vita, as the emulator I'm testing with keeps crashing trying to run the app for some unknown reason (it used to run fine before, so perhaps something else is going wrong (using Vita3k for that)).
Edit: Forgot to install the firmware&font files required for the emulator XD Those were causing said problems.
It looks like it's running without issues on the emulator though? I can't see anything going wrong (other than trying to exit the game using ALT-F4 on the OSK not quitting the app for some unknown reason. Although that might be just because it's an experimental emulator?
Both the OSK touch screen as well as the normal keyboard using the start button, left analog stick and face buttons seems to work properly?
What's happening in your case? Did you press the start button first to toggle it into keyboard mode (a capital K in the lower right and the current inputs for the face buttons appearing to the left of the buttons)? Depending on timing, you'll need to hold the start button for a bit to make it toggle.