I'm combining A-frame and AR.js, An error will occur if 51 or more .patt files are registered. If there are 50 .patt files, it works fine.

error message： loadMarker(): Error loading pattern file /marker_50.

*The last number changes with each load.

• There is no problem with the server or .patt files.
• I searched github to see if there was a limit to the number of .patt files, but I couldn't find it.

I think it's bad to call them all at once, but are there any workarounds or "aframe-ar.js" settings?

.patt registration is done like this.

<a-marker type="pattern" url="marker/pattern-49.patt" id="m49" registerevents></a-marker>

<a-marker type="pattern" url="marker/pattern-50.patt" id="m50" registerevents></a-marker>

<a-marker type="pattern" url="marker/pattern-51.patt" id="m51" registerevents></a-marker>