Have you encountered something really interesting in-game, pressed F12 and learned that screenshots aren't working in this game? Worry not, I shall teach you a quick and easy fix for this.

Step 1
Locate your Steam HoloCure game folder. Right click HoloCure on Steam, go to properties -> Installed Files -> click on browse and a window should pop up opening the game folder.

Step 2
Rename steam_api64.dll into something else. (I used "(eh)steam_api64.dll")

Step 3
Open up the game or re-open up the game if you did this while it was running. Press F12 and enjoy the Steam screenshot feature once again.

This will stop your Steam achievements from being tracked but your in-game achievements will still remain. So it's more like your Steam achievements are paused and not really disabled. To unpause Steam achievements just rename the dll file to "steam_api64.dll " again and your Steam achievements will appear (if you have earned any new ones while playing with this fix) when you relaunch the game. Yes, I know it's very janky and I do hope it gets fixed very soon since it's one of the very few games that this occurs. Such a shame too since there are so many screenshots I want to take and upload to Steam for future documentation.

Sample Screenshot:



Sample of me getting my Steam achievements after I undid the fix and rebooted the game:
I did a Roboco run for the first time, screenshotted a bunch of stuff, closed the game, ate dinner, watched Mococo say "Hiya darling", laughed at Fuwawa's banshee's screams, got really amused at the stream snipers with specific names for Bijou and Nerissa, remembered that I still have to get the golden rod, changed the dll file name to the original one, booted up the game and VIOLA! My Steam achievements appeared again.

TLDR:

Yes, it works and your achievements will not disappear even if it takes a while for you to rename the dll file.

I cant wait for Biboo and the pebbles to be in the game. ROCK ROCK :D