Import SVG masks without crashing
Illustrator app crashes when an SVG mask is referenced more than once. This has been in successive releases of Illustrator. Also nested masks aren't supported either.
Please get in touch with us at any of the other support channels – https://helpx.adobe.com/support.html . Since this is not a generic issue that we can reproduce at our end, we will need someone to look into your machine to figure out what is going on here.
Ashutosh Chaturvedi | Sr. Quality Engineering Manager – Illustrator
Dirk Schulze commented
Hi Alec, could you please try if the latest release of Illustrator fixed the crashes? If not, could you please share example files that crash Illustrator? A crash is the worst experience for a user and has the highest priority.