I didn't think James' patch worked with more than three bitplanes per playfield..!
Testing it now confirmed my suspicion (opened two screens with 16 colours each and tried using dual playfield on them).
So I think you must be using the new AGA library without realising it?
There is no compiler support for the AGA library yet, at least not from the original compiler.
I have one hack solution that might work, you can at least give it a try if you'd like: rename the AGA library (in S:Libs?) to amos.library first and then run the compiler.

anyone have any idea about this topic please?

Hi Amos Coders, long time not posting on this board , hope every one are doing well 

Long time ago I found James666 patched Amos library on this Forum , "Big Thank you to James666" for his patched Amos library  , no only fix the glitchy dualplayfield Amos scroll but also add 4 bitplanes per each playfield  on Amos! ,

allright I´m working on this now : https://amiten.itch.io/cyberpunk-alien-city
and I´m using James666 Amos Patched Library for that , the problem is :  if I compile the Game , this Runs Fine if lauched from workbench 3.1 , but  if I copy the game to a floppy disk and boot from the floppy an error happens saying "can´t set dual playfield "  , I very much appreciated if some one here can help to give some light on why this happens, and the way to solve.

I hope some one here can help, cheers!

Just a bunp to see if anyone had finished an A1200 KiCad layout already.

Dang, did try that before but nothing happened, got it to trigger with one of the spellcasters, haha, great game, huge, very puzzly and solid game altogether, well done. 

Yea, seems like the end, can't seem to find an alter though. 

the pad between the chaos signs - it's figurative

Yea, seems like the end, can't seem to find an alter though. 

Turns out you have to use negative numbers as input to get a deterministic sequence of numbers. If positive inputs are used the video beam position gets thrown into the calculation
Randomize 1000 : Print Str$(Rnd(-100))

I need reliable pseudo random numbers and under the randomize command in the manual it says "the sequence of numbers generated by the RND function will be exactly the same each time your program is run." 

Does anyone know how to get this program to give the same result every time it is run?  or why it doesnt?

randomize 1000: print str$(rnd(100))
Any light you can shed on this would be helpful.     I'll make my own pseudo random function in the meantime.

Kikems on EAB wants a more compact music and sound effects library than AMCAF or AmosMusic extensions for getting the GRAC2.5 games to work on 512k systems.  I suggested making an extension out of http://aminet.net/package/mus/play/ptplayer but now I don't have time to do it.  I've posted this request on the Facebook group too but if someone knows how to do it please upload it to the Aminet.net upload queue.