Invisibility bug

[Pregnant Orc]

Minor spoilers for just after climbing the tower on to of the subway station.
Should be vague enough.

If you climb back up again after meeting the Reaper the climbing animation will not play again.
I'm not certain if it happens on its own or if it was caused by left clicking to look at the glider that gets placed nearby after the Reapers appearance. The error did not go away by talking to the doc or on going to another room (The entrance to the quarantine zone)

[londonfan]

Sadly I've hit this bug, the player sprite disappears and won't reappear on quitting/reloading, nor going to other locations.  Happened at the same place as OP, after revisiting a high place the slow way round.
Haven't been saving too often so will probably have to replay a few hours 

I'll attach my current save file, just after invisibility bug kicked in in case it helps the devs.

[Pregnant Orc]

Had a save not long before so I loaded it and went up the tower.
Only two things that might differ is the walk speed and that I picked up a pair of gloves from the mannequin you can cut loose on the basement. Unlikely to be a spoiler and I apologize if it spoiled the puzzle.
Should hopefully save you some time getting back at least

[Grundislav]

This has been fixed and will be taken care of in an upcoming patch. Thanks for catching it!

[Jasko2000]

Thanks for the patch! However it seems that it's not yet available from the Humble Store - the file there still has the date of March 7th. I downloaded it just to make sure and indeed it's still the release version (MD5 7dde96a07a5ce1882a22834668b65bf8).