Help cake has a hole through the middle

[SconesandCupcakes]

Hi, I baked a lemon drizzle loaf cake today and for the second time in as many weeks a 'tunnel' is going through the middle of the cake. I have no idea why this is the ingredients were all at room temperature, cake mixture was properly combined, oven door not opened until the cake was baked.
Please help this is driving me nuts I have been baking this cake for years and until two weeks never had any problems with it. DH thinks it's because I dared to utter the words 'this cake never fails me' well it has failed me now not once but twice!

I have no idea what is going wrong....but I would just pipe some lemon curd into the hole and pretend it wa deliberate!

I have had the same thing on occasions. It could be one of so many things. Have a look at the link below and see if you can spot your reason 🧁

delishably.com/desserts/Baking-Tips-Why-a-Cake-Sinks-in-the-Middle-and-How-to-Stop-It

Do you mean a hole as in a big air pocket inside the cake or that it's collapsed in the middle?

My loaf tin lemon drizzle (again, a no-fail recipe) decided to erupt out of the tin and all over the oven floor like Vesuvius. I read somewhere that if you use old baking powder it can f**k you up. I crumbled what was left into a trifle with white chocolate custard - yum but hesitant about baking another one now.

Get some strawberries and raspberries and fill in the hole with fruit and cream. It is really delicious. I do this deliberately with lemon drizzle cakes, at the request of family.

It doesn’t last as long, but they never go off before they’re all gone on my house!

Thank you for your replies and yummy suggestions to disguise the hole, I have frozen the cake to use in a lemon trifle another day!
@Bigfatpicnic thanks for the link I will take a look
@HardAsSnails the cake has a big air pocket like a tunnel running through the middle of the cake, you cannot notice this until the cake is sliced.
@lifestooshort123 I opened a brand new packet of baking powder today so can't be that. I bet you had fun cleaning cake off the oven floor! I know what you mean I am really hesitant to bake a loaf cake again. I bake a lot and have never had an issue like this before, it's bizarre!

You need to bang the baking tin down hard to get rid of big air pockets before baking.

Are you using a machine to mix it as you're probably over-beating to have that much air inside?

@HardAsSnails I did bang the tin just the same as I always have. I do use a machine to mix I guess that I must have over mixed it then. But it doesn't make sense I did everything the same as ever also I make all of my cakes in a machine and have no issues with them. Anyway thanks for your advice I will mix it until just incorporated next time and hope for the best!