Rocks'n'Diamonds

I'm running Rocks'n'Diamonds 3.2.3 SDL on Linux.
I seem to be unable to drop dynamite in the Emerald Mine Club levels.
I first noticed this issue in level 0 of the Ace Mine 1 levelset, and it seems to be an issue in every EMC levelset I tried.
This functionality works fine in the Classic Original EM levels.
How do I fix this?

Thanks in advance again for your attention to my questions.
Mr Ed

EM/EMC style dynamite and R'n'D style dynamite (which is -- unfortunately! -- used in the older Classic Emerald Mine level set conversion for R'n'D instead of the EM/EMC style element) behave differently: While you drop R'n'D style dynamite by simply pressing the drop button, you have to press the drop button and hold it pressed for about half a second to drop EM/EMC style dynamite!

This is how it works/worked in the classic original Emerald Mine game, and yes, this makes placing dynamite and running away in time far more difficult and dangerous than with using R'n'D dynamite!