Is there a limit of 40 items per map?

I installed the free version of GMapFP to generate the map of ice skating rinks at scnylab.org/j40/index.php/about/affiliated-rinks, but only the first 40 of the 50+ items are displaying. Is there a limit? And, if so, is there also a limit in the Pro version? I need to display all 50+ rinks.

I used ContentMap to generate a similar map several years ago in Joomla 3.0, but our website is now in Joomla 4.0, which ContentMap does not support. 

Merci pour votre aide.

I discovered the answer when I upgraded to GMapFP Pro. The map no longer works (no idea why), but instead shows how I called GMapFP:

{gmapfp id="2,3,4,5,6,7,8,9,10,,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40"}

So, the 40 item limit was set by me, not GMapFP. User error. But now I don't see a map, just the {gmapfp id=" "} code. Should I switch back to the free version?

I restored my Akeeba backup from yesterday (free version of GMapFP), then added the missing item IDs to the {gmapfp id="..."} code. Everything works fine; I look forward to the next GMapFP release which will include North American style addresses (Zipcode after City and State/Province). Great product! Merci!