@d-healey I had to specify the custom font in each instance of text, as "default" settings would not render any text, even though the default font was set in the script.
This is a quirk that didn't exist at first, but then got introduced at some point. Not sure if it is still present.

@matt_sf Oh perfect, thanks!

I just found this in the compile template, I think it's related enablePluginBinaryCopyStep=\"%COPY_PLUGIN%\"

@Christoph-Hart I narrowed down the cause of the crashes. It has to with the code of the project. While it works in the stand-alone version, it crashes the plugin. I believe that this is part of the code that causes the crash:

settingsPanel.setContentData(channelData); settingsPanel2.setContentData(audioSettingsData); settingsPanel3.setContentData(midiInput);

@Jay It is how the pop-up panels are initiated. Get rid of that code and the project should open up.

I ended up rebuilding the entire project from scratch within the HISE plugin. I copied and pasted elements from standalone version and once I came across those elements, issues started to happen. I utilized different solution to display pop-ups, that Christoph provided in another post.