Map Upload Freezing

[KarlKnopf]

I can't upload a map without it being stuck in the loading phase and then becoming unresponsive. I tried making the image significantly smaller but that didn't seem to help. Both images are under the 16384×16384 pixels limit.
my specs:
Device name DESKTOP-7GFRN9S
Processor Intel(R) Core(TM) i7-8700 CPU @ 3.20GHz 3.19 GHz
Installed RAM 16.0 GB
Device ID 7774AE94-5C68-45F2-BE02-24C5C2F89ACC
Product ID 00330-80000-00000-AA146
System type 64-bit operating system, x64-based processor
Pen and touch No pen or touch input is available for this display

I am using version 0.1.1g of the program.