Lines that I create with the line tool are disappearing from all of my maps!

Hey everybody, I'm really hoping I can get some help today. I tried to contact the Inkarnate support team but they're unavailable until tomorrow and I have a session later today. So my issue is that I created two separate maps, then after I created those maps I cloned them about 5-6 times each so that I could create an evolving battlefield for my players. I exported all 11 maps and found that none of them had any of the stamps that i had placed using the line tool. Upon further inspection I found that the lines didn't delete themselves but instead just became invisible except for the very end pieces of each line places. Placing new stamps with the line tool results in the same issue, its done this on all of my maps. When I checked the exported photos I found that in the version that I had exported first there was no issue, but in the following version there was only half of the lines showing and then the rest of them just had them visually missing. Any help would be appreciated. Pics for reference.