I love ElekzCAM, works great for me, even tho there are a few workarounds for some shortcomings. I don't like the text draw part, I make a JPEG thru Windows Paint and use pic carve. LaserGRBL and T2laser is too complicated.
@Josh-Lamb It’s certainly possible, I know some backup and anti-virus software can cause it. They take over the processor and interfere with the communication. Simple Streaming may help, but can have other negative effects.