I'm not able to reproduce this, even using V1.47n rather than V1.47n-C2 or V1.47n-D:FC73BC8.
First, I strongly suggest upgrading to either the stable V1.47n-C2 or the experimental V1.47n-D:FC73BC8.
If it happens again, can you follow these steps and report back:
1. Wait a little bit to see if the replay continues (and thus it's merely a graphical glitch with the R disappearing). If this is the case, changes for the next update (these changes are included in V1.47n-D:FC73BC8, but not in V1.47n-C2) should have already fixed this.
2. Restart the level again. Do not do the 10-second skip, just watch (fast forward is okay).
3. If the R disappears again (which will most likely be within the first 10 seconds), see if you can notice anything about the time. Does a skill assignment, nuke, or release rate change occur (whether or not it's one that you actually performed before)?
4. Whether you can notice anything or not, save a replay file and upload that here.