You can enter the ruins without cutting the vines. You still have the option to hack them too, but if you're not holding a machete or shears you can just enter.
Steps to Reproduce
1. Go to the Jungle, 2. Find a ruinous entrance that has vines, 3. Enter it without cutting the vines.
1. Go to the Jungle, 2. Find a ruinous entrance that has vines, 3. Enter it without cutting the vines.
A developer has marked this issue as fixed. This means that the issue has been addressed in the current development build and will likely be in the next update.