Ask HN: Any downsides to using personal licenses at work?

I have a license to JetBrains Ultimate, Pinegrow, and a few other tools. Work won’t pay for these but I want to use this software on my work machine for work purposes. Assuming the software is licensed to make that okay (I.e. for JetBrains they can’t reimburse me) are there any cases where doing this led to the employer owning all IP produced with those tools, even if that was IP was made on my own machine for a side project?