Uses about 8% CPU on my rig, but do get about 30FPS in latest FireFox.

Maybe the following will help: https://www.scirra.com/forum/viewtopic.php?f=147&t=106642

Just had a quick search and found this thread. Maybe it will help.

https://www.scirra.com/forum/span-class-posthilit-pendulum-span_p615416?#p615416

I'd try, if at all possible, to run your project on a different system to see if it still fails.

If nothing else, you will get peace of mind knowing it either works OK on a different setup - thus pointing the finger of suspicion at your current PC - or highlight a possible issue with your project or even C2 itself.

Those figures don't appear to be overly high. Collision checks would only be about 28 per tick which is nothing.

Those figures don't look like they should be causing a problem IMO.

What system do you have? Os, memory, GPU etc.

Have you tried this on another computer, to see if the crashes still occur?

How much memory is your game using? What does debug say for collisions, objects created etc?

Just because a project is large, should mean you should suffer such instability. Maybe this might be a useful large project that Ashley could use to help make C2 even better? That would have to be between you and he, obviously, but if large projects are causing C2 to fail, then something needs to be done about it.

Several problems with your reply that just could get you into legal trouble, the main one being:

"if i am using someone else personal edition or business edition am i able to put ads on it and upload ? "

This is a massive no-no. Under no circumstances are you ever permitted to use anyone's Personal License, never mind use it to generate income.

I think it's best if Ashley or especially Tom took over thread, as I think you may be almost crossing some legal boundary.

If you hide all Layers, click on the Tilemap Layer then Click on the Tilemap object in the Layout View, can you then access it?

BTW what version of C2 are you using?

Have you placed each tilemap on it's own layer?

The general way of doing things is to place associated objects on their own layer, such as background objects, main objects, hud etc, then you can hide/show Layers while you work on others.

Security isn't going to allow that. It is far too risky. It would mean any site could theoretically install anything they like.

Lunatrap

It's in the new beta. Here's the write-up:

"New experimental option in Preferences dialog: 'Cache icons in editor for better performance'. Defaults to on (which is what it used to do). If turned off, it can reduce editor performance since every time an icon is needed it will have to re-load the object image and resize it down to an icon. Icon quality is also reduced to help make this as fast as possible, but this mode has the benefit of helping to avoid hitting a limitation in Windows of how many icons an application can create, which can cause stability issues with very large projects."

Is the crashing happening with any project or just a particular one? Is the project large?

Have you tried turning the icon cache off in preferences (which should help with large projects)?