Emberheartgames: Please post all your bug reports here so we can keep them in one place. I'll try to keep a list of active ones in the first post so they don't get reported multiple times.

ACTIVE BUGS:
• Walking on the exit door won't trigger the "Exit level" sequence
• You can't use the 'q' letter in level editor text boxes.
• When finishing a level inside the level editor, the level will be erased sometimes (make sure you save your level before playtesting until fix is found)

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To see previous updates and fixes please visit this topi - UPDATES HISTORY

Emberheartgames: It seems like the last update messed up save location but your saves should be ok.
There is a new update that will bring your old saves back.

For future reference, GOG save games are always here (GOG cloud will sync them here):
C:\Users\<user>\AppData\LocalLow\Apogee Software\Crystal Caves HD\Gog\Saves

Sorry for the trouble!