Hi – that is definitely odd behaviour.
I wonder though if it is more complicated than just a conflict with WooCommerce (simply because lots of users have this combination and don’t hit problems – nor do I see the same thing when I test it out locally). Can you try out a variation of our normal troubleshooting steps?
- Please deactivate everything except The Events Calendar, Events Calendar PRO and WooCommerce
- Switch to a default, unmodified theme such as Twenty Thirteen
- Does the problem still occur?
It would be useful to know this as it may be that (just as an example) your theme includes code that integrates with WooCommerce and has some unwanted side effect – in which case the issue wouldn’t really be with either our plugins or WooCommerce.
Can you give that a go and let me know how you get on?