Ceiling rose wiring help

[captain pugwash]

Hi Guys, some advice would really help me:

Bedroom ceiling light keeps blowing bulbs so I have taken it down to fit new, however,,
wiring has me a bit confused, Ignoring the earths I have a 3 core & a 2 core cable,
3 core cable
A/ Red--------------------Permanently live
B/ Blue--------------------
C/ Yellow-----------------Live when wall switch on
2 core cable
D/ Red-------------------
E/ Blue------------------

The live red A/ is connected by a separate block to blue wire E/

The blue wire B/ is connected in the pendant block with red wire D/

Yellow wire C/ goes to other pendant connection

This I presume is a loop type lighting circuit but I am confused by the red to blue scenario ???

Would this be causing a problem?

Thanks in advance

 

[Octopus]

Does to room have 2 way switching?

 

[tony mc]

A picture may help if you can post one!!

 

[captain pugwash]

Single way switch, can't manage picture at the moment, sorry

 

[ianbrookes]

is the yellow wire connected to the pendant block and any other cables ?

 

[captain pugwash]

is the yellow wire connected to the pendant block and any other cables ?

Yellow on it's own to the pendant

 

[ianbrookes]

what is behind the wall switch ?

 

[mickys86]

Is there another light in the room? Is it a 1g switch or 2g? A picture would really help

 

[captain pugwash]

what is behind the wall switch ?

Block, the box is chased into the wall

 

[captain pugwash]

Is there another light in the room? Is it a 1g switch or 2g? A picture would really help

1 gang switch, this is the only ceiling light