Elementor Formatting Issues

I’ve made a number of sites with Elementor (and Pro), with only random bugs emerging. However, now, with this new site (running Hello theme) plus LiteSpeed, I am finding numerous mobile rendering issues.

First, I discovered that leaving minify CSS on (by default), random parts of the Elementor page had only default rendering, not what I customized (buttons were the wrong shape/color, headings used the default color, font, and size, etc.). Turning off this feature immediately resolved that.

Second, I found an issue with mobile formatting of flex boxes and grids. Everything looked great on desktop, but mobile would get “stuck” (even after purging cache). If I disable LiteSpeed plugin, the mobile version of the site looks fine. I tried switching most settings I thought would affect it, but none made a difference. Only disabling it.

Are there known compatibility issues with Elementor? I’d prefer to use the caching, but if it’s going to just make the site building more difficult, then it’s not worth the benefits.

Thanks.