issues with time machine software to view tm backups

this is both a question and comment on this issue.

I started to noticed that on entering 'time machine' on my imac all the 'backed up' folder screens that are stacked up behind each other had a black screen instead of the 'finder desktop window'. Worse still this problem was intermittant - sometimes I could view backed up data.

I use a late 2013 IMAC (latest update of OSX) connected wirelessly to a 6 month old 2gb time capsule (TC).

I spoke to Apple (April 2014) and they are unaware of any similar problems ⚠

The guy who was trying to help suggested it was a wireless interference problem and I agreed to try a number of things before just deleting the backup and starting all over again (not for the first time). I note that 6 months ago I replaced a WD NAS as I was having repeated problems using it with TM.

Digging around a little more what seems clear to me is that the issue maybe with how TM communicates with the TC, rather than any wireless interference.

If I open finder and select TC > data > 'computer name' sparse bundle.

Clicking on the sparse bundle file loads the 'time machine' server in the DEVICES list.

From there you will see all the backups taken since day1 - date/time folder name.

Selecting one of these reveals the actual folders from your computer that were backed up and clicking through the folders you can open any file that was backed up.

The point is here; using finder over the same wireless network I can view any file that TM has backed up to the TC, however at the same time (having ejected the time machine device) I am unable to view the same files through the TM software as the stacked windows are all black.

I have to assume that TM is using a different method to access the TC commpared to finder, otherwise I would have the same issues in finder.